19957703480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{311}}^1\times {\mathrm{863}}^1$

素因数の和:1222

約数の個数: 192

約数和(自身を含む): 53277419520

約数和(自身を除く): 33319716040

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 169, 220, 260, 286, 311, 338, 440, 520, 572, 622, 676, 715, 845, 863, 1144, 1244, 1352, 1430, 1555, 1690, 1726, 1859, 2488, 2860, 3110, 3380, 3421, 3452, 3718, 4043, 4315, 5720, 6220, 6760, 6842, 6904, 7436, 8086, 8630, 9295, 9493, 11219, 12440, 13684, 14872, 16172, 17105, 17260, 18590, 18986, 20215, 22438, 27368, 32344, 34210, 34520, 37180, 37972, 40430, 44473, 44876, 47465, 52559, 56095, 68420, 74360, 75944, 80860, 88946, 89752, 94930, 105118, 112190, 123409, 136840, 145847, 161720, 177892, 189860, 210236, 222365, 224380, 246818, 262795, 268393, 291694, 355784, 379720, 420472, 444730, 448760, 493636, 525590, 536786, 578149, 583388, 617045, 729235, 889460, 987272, 1051180, 1073572, 1156298, 1166776, 1234090, 1341965, 1458470, 1604317, 1778920, 2102360, 2147144, 2312596, 2468180, 2683930, 2890745, 2916940, 2952323, 3208634, 3489109, 4625192, 4936360, 5367860, 5781490, 5833880, 5904646, 6417268, 6978218, 8021585, 10735720, 11562980, 11809292, 12834536, 13956436, 14761615, 16043170, 17445545, 23125960, 23618584, 27912872, 29523230, 32086340, 34891090, 38380199, 45358417, 59046460, 64172680, 69782180, 76760398, 90716834, 118092920, 139564360, 153520796, 181433668, 191900995, 226792085, 307041592, 362867336, 383801990, 453584170, 498942587, 767603980, 907168340, 997885174, 1535207960, 1814336680, 1995770348, 2494712935, 3991540696, 4989425870, 9978851740, 19957703480]

約数ペア:

[(1, 19957703480), (2, 9978851740), (4, 4989425870), (5, 3991540696), (8, 2494712935), (10, 1995770348), (11, 1814336680), (13, 1535207960), (20, 997885174), (22, 907168340), (26, 767603980), (40, 498942587), (44, 453584170), (52, 383801990), (55, 362867336), (65, 307041592), (88, 226792085), (104, 191900995), (110, 181433668), (130, 153520796), (143, 139564360), (169, 118092920), (220, 90716834), (260, 76760398), (286, 69782180), (311, 64172680), (338, 59046460), (440, 45358417), (520, 38380199), (572, 34891090), (622, 32086340), (676, 29523230), (715, 27912872), (845, 23618584), (863, 23125960), (1144, 17445545), (1244, 16043170), (1352, 14761615), (1430, 13956436), (1555, 12834536), (1690, 11809292), (1726, 11562980), (1859, 10735720), (2488, 8021585), (2860, 6978218), (3110, 6417268), (3380, 5904646), (3421, 5833880), (3452, 5781490), (3718, 5367860), (4043, 4936360), (4315, 4625192), (5720, 3489109), (6220, 3208634), (6760, 2952323), (6842, 2916940), (6904, 2890745), (7436, 2683930), (8086, 2468180), (8630, 2312596), (9295, 2147144), (9493, 2102360), (11219, 1778920), (12440, 1604317), (13684, 1458470), (14872, 1341965), (16172, 1234090), (17105, 1166776), (17260, 1156298), (18590, 1073572), (18986, 1051180), (20215, 987272), (22438, 889460), (27368, 729235), (32344, 617045), (34210, 583388), (34520, 578149), (37180, 536786), (37972, 525590), (40430, 493636), (44473, 448760), (44876, 444730), (47465, 420472), (52559, 379720), (56095, 355784), (68420, 291694), (74360, 268393), (75944, 262795), (80860, 246818), (88946, 224380), (89752, 222365), (94930, 210236), (105118, 189860), (112190, 177892), (123409, 161720), (136840, 145847)]