20132456240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{433}}^1$

素因数の和:672

約数の個数: 240

約数和(自身を含む): 53771870880

約数和(自身を除く): 33639414640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 169, 181, 190, 208, 247, 260, 304, 338, 362, 380, 433, 494, 520, 676, 724, 760, 845, 866, 905, 988, 1040, 1235, 1352, 1448, 1520, 1690, 1732, 1810, 1976, 2165, 2353, 2470, 2704, 2896, 3211, 3380, 3439, 3464, 3620, 3952, 4330, 4706, 4940, 5629, 6422, 6760, 6878, 6928, 7240, 8227, 8660, 9412, 9880, 11258, 11765, 12844, 13520, 13756, 14480, 16055, 16454, 17195, 17320, 18824, 19760, 22516, 23530, 25688, 27512, 28145, 30589, 32110, 32908, 34390, 34640, 37648, 41135, 44707, 45032, 47060, 51376, 55024, 56290, 61178, 64220, 65816, 68780, 73177, 78373, 82270, 89414, 90064, 94120, 106951, 112580, 122356, 128440, 131632, 137560, 146354, 152945, 156746, 164540, 178828, 188240, 213902, 223535, 225160, 244712, 256880, 275120, 292708, 305890, 313492, 329080, 357656, 365885, 391865, 427804, 447070, 450320, 489424, 534755, 581191, 585416, 611780, 626984, 658160, 715312, 731770, 783730, 855608, 894140, 1018849, 1069510, 1162382, 1170832, 1223560, 1253968, 1390363, 1463540, 1489087, 1567460, 1711216, 1788280, 2037698, 2139020, 2324764, 2447120, 2780726, 2905955, 2927080, 2978174, 3134920, 3576560, 4075396, 4278040, 4649528, 5094245, 5561452, 5811910, 5854160, 5956348, 6269840, 6951815, 7445435, 8150792, 8556080, 9299056, 10188490, 11122904, 11623820, 11912696, 13245037, 13903630, 14890870, 16301584, 19358131, 20376980, 22245808, 23247640, 23825392, 26490074, 27807260, 29781740, 38716262, 40753960, 46495280, 52980148, 55614520, 59563480, 66225185, 77432524, 81507920, 96790655, 105960296, 111229040, 119126960, 132450370, 154865048, 193581310, 211920592, 251655703, 264900740, 309730096, 387162620, 503311406, 529801480, 774325240, 1006622812, 1059602960, 1258278515, 1548650480, 2013245624, 2516557030, 4026491248, 5033114060, 10066228120, 20132456240]

約数ペア:

[(1, 20132456240), (2, 10066228120), (4, 5033114060), (5, 4026491248), (8, 2516557030), (10, 2013245624), (13, 1548650480), (16, 1258278515), (19, 1059602960), (20, 1006622812), (26, 774325240), (38, 529801480), (40, 503311406), (52, 387162620), (65, 309730096), (76, 264900740), (80, 251655703), (95, 211920592), (104, 193581310), (130, 154865048), (152, 132450370), (169, 119126960), (181, 111229040), (190, 105960296), (208, 96790655), (247, 81507920), (260, 77432524), (304, 66225185), (338, 59563480), (362, 55614520), (380, 52980148), (433, 46495280), (494, 40753960), (520, 38716262), (676, 29781740), (724, 27807260), (760, 26490074), (845, 23825392), (866, 23247640), (905, 22245808), (988, 20376980), (1040, 19358131), (1235, 16301584), (1352, 14890870), (1448, 13903630), (1520, 13245037), (1690, 11912696), (1732, 11623820), (1810, 11122904), (1976, 10188490), (2165, 9299056), (2353, 8556080), (2470, 8150792), (2704, 7445435), (2896, 6951815), (3211, 6269840), (3380, 5956348), (3439, 5854160), (3464, 5811910), (3620, 5561452), (3952, 5094245), (4330, 4649528), (4706, 4278040), (4940, 4075396), (5629, 3576560), (6422, 3134920), (6760, 2978174), (6878, 2927080), (6928, 2905955), (7240, 2780726), (8227, 2447120), (8660, 2324764), (9412, 2139020), (9880, 2037698), (11258, 1788280), (11765, 1711216), (12844, 1567460), (13520, 1489087), (13756, 1463540), (14480, 1390363), (16055, 1253968), (16454, 1223560), (17195, 1170832), (17320, 1162382), (18824, 1069510), (19760, 1018849), (22516, 894140), (23530, 855608), (25688, 783730), (27512, 731770), (28145, 715312), (30589, 658160), (32110, 626984), (32908, 611780), (34390, 585416), (34640, 581191), (37648, 534755), (41135, 489424), (44707, 450320), (45032, 447070), (47060, 427804), (51376, 391865), (55024, 365885), (56290, 357656), (61178, 329080), (64220, 313492), (65816, 305890), (68780, 292708), (73177, 275120), (78373, 256880), (82270, 244712), (89414, 225160), (90064, 223535), (94120, 213902), (106951, 188240), (112580, 178828), (122356, 164540), (128440, 156746), (131632, 152945), (137560, 146354)]