20178292120

素因数分解:

$2^3\times 5^1\times 7^4\times {\mathrm{17}}^2\times {\mathrm{727}}^1$

素因数の和:800

約数の個数: 240

約数和(自身を含む): 56341106640

約数和(自身を除く): 36162814520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 85, 98, 119, 136, 140, 170, 196, 238, 245, 280, 289, 340, 343, 392, 476, 490, 578, 595, 680, 686, 727, 833, 952, 980, 1156, 1190, 1372, 1445, 1454, 1666, 1715, 1960, 2023, 2312, 2380, 2401, 2744, 2890, 2908, 3332, 3430, 3635, 4046, 4165, 4760, 4802, 5089, 5780, 5816, 5831, 6664, 6860, 7270, 8092, 8330, 9604, 10115, 10178, 11560, 11662, 12005, 12359, 13720, 14161, 14540, 16184, 16660, 19208, 20230, 20356, 23324, 24010, 24718, 25445, 28322, 29080, 29155, 33320, 35623, 40460, 40712, 40817, 46648, 48020, 49436, 50890, 56644, 58310, 61795, 70805, 71246, 80920, 81634, 86513, 96040, 98872, 99127, 101780, 113288, 116620, 123590, 141610, 142492, 163268, 173026, 178115, 198254, 203560, 204085, 210103, 233240, 247180, 249361, 283220, 284984, 326536, 346052, 356230, 396508, 408170, 420206, 432565, 494360, 495635, 498722, 566440, 605591, 692104, 693889, 712460, 793016, 816340, 840412, 865130, 991270, 997444, 1050515, 1211182, 1246805, 1387778, 1424920, 1470721, 1632680, 1680824, 1730260, 1745527, 1982540, 1994888, 2101030, 2422364, 2493610, 2775556, 2941442, 3027955, 3460520, 3469445, 3491054, 3965080, 4202060, 4239137, 4844728, 4987220, 5551112, 5882884, 6055910, 6938890, 6982108, 7353605, 8404120, 8478274, 8727635, 9974440, 10295047, 11765768, 12111820, 13877780, 13964216, 14707210, 16956548, 17455270, 20590094, 21195685, 24223640, 27755560, 29414420, 29673959, 33913096, 34910540, 41180188, 42391370, 51475235, 58828840, 59347918, 69821080, 72065329, 82360376, 84782740, 102950470, 118695836, 144130658, 148369795, 169565480, 205900940, 237391672, 288261316, 296739590, 360326645, 411801880, 504457303, 576522632, 593479180, 720653290, 1008914606, 1186958360, 1441306580, 2017829212, 2522286515, 2882613160, 4035658424, 5044573030, 10089146060, 20178292120]

約数ペア:

[(1, 20178292120), (2, 10089146060), (4, 5044573030), (5, 4035658424), (7, 2882613160), (8, 2522286515), (10, 2017829212), (14, 1441306580), (17, 1186958360), (20, 1008914606), (28, 720653290), (34, 593479180), (35, 576522632), (40, 504457303), (49, 411801880), (56, 360326645), (68, 296739590), (70, 288261316), (85, 237391672), (98, 205900940), (119, 169565480), (136, 148369795), (140, 144130658), (170, 118695836), (196, 102950470), (238, 84782740), (245, 82360376), (280, 72065329), (289, 69821080), (340, 59347918), (343, 58828840), (392, 51475235), (476, 42391370), (490, 41180188), (578, 34910540), (595, 33913096), (680, 29673959), (686, 29414420), (727, 27755560), (833, 24223640), (952, 21195685), (980, 20590094), (1156, 17455270), (1190, 16956548), (1372, 14707210), (1445, 13964216), (1454, 13877780), (1666, 12111820), (1715, 11765768), (1960, 10295047), (2023, 9974440), (2312, 8727635), (2380, 8478274), (2401, 8404120), (2744, 7353605), (2890, 6982108), (2908, 6938890), (3332, 6055910), (3430, 5882884), (3635, 5551112), (4046, 4987220), (4165, 4844728), (4760, 4239137), (4802, 4202060), (5089, 3965080), (5780, 3491054), (5816, 3469445), (5831, 3460520), (6664, 3027955), (6860, 2941442), (7270, 2775556), (8092, 2493610), (8330, 2422364), (9604, 2101030), (10115, 1994888), (10178, 1982540), (11560, 1745527), (11662, 1730260), (12005, 1680824), (12359, 1632680), (13720, 1470721), (14161, 1424920), (14540, 1387778), (16184, 1246805), (16660, 1211182), (19208, 1050515), (20230, 997444), (20356, 991270), (23324, 865130), (24010, 840412), (24718, 816340), (25445, 793016), (28322, 712460), (29080, 693889), (29155, 692104), (33320, 605591), (35623, 566440), (40460, 498722), (40712, 495635), (40817, 494360), (46648, 432565), (48020, 420206), (49436, 408170), (50890, 396508), (56644, 356230), (58310, 346052), (61795, 326536), (70805, 284984), (71246, 283220), (80920, 249361), (81634, 247180), (86513, 233240), (96040, 210103), (98872, 204085), (99127, 203560), (101780, 198254), (113288, 178115), (116620, 173026), (123590, 163268), (141610, 142492)]