20512128980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{44171}}^1$

素因数の和:44325

約数の個数: 96

約数和(自身を含む): 51293233152

約数和(自身を除く): 30781104172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 107, 124, 140, 155, 214, 217, 310, 428, 434, 535, 620, 749, 868, 1070, 1085, 1498, 2140, 2170, 2996, 3317, 3745, 4340, 6634, 7490, 13268, 14980, 16585, 23219, 33170, 44171, 46438, 66340, 88342, 92876, 116095, 176684, 220855, 232190, 309197, 441710, 464380, 618394, 883420, 1236788, 1369301, 1545985, 2738602, 3091970, 4726297, 5477204, 6183940, 6846505, 9452594, 9585107, 13693010, 18905188, 19170214, 23631485, 27386020, 33084079, 38340428, 47262970, 47925535, 66168158, 94525940, 95851070, 132336316, 146515207, 165420395, 191702140, 293030414, 330840790, 586060828, 661681580, 732576035, 1025606449, 1465152070, 2051212898, 2930304140, 4102425796, 5128032245, 10256064490, 20512128980]

約数ペア:

[(1, 20512128980), (2, 10256064490), (4, 5128032245), (5, 4102425796), (7, 2930304140), (10, 2051212898), (14, 1465152070), (20, 1025606449), (28, 732576035), (31, 661681580), (35, 586060828), (62, 330840790), (70, 293030414), (107, 191702140), (124, 165420395), (140, 146515207), (155, 132336316), (214, 95851070), (217, 94525940), (310, 66168158), (428, 47925535), (434, 47262970), (535, 38340428), (620, 33084079), (749, 27386020), (868, 23631485), (1070, 19170214), (1085, 18905188), (1498, 13693010), (2140, 9585107), (2170, 9452594), (2996, 6846505), (3317, 6183940), (3745, 5477204), (4340, 4726297), (6634, 3091970), (7490, 2738602), (13268, 1545985), (14980, 1369301), (16585, 1236788), (23219, 883420), (33170, 618394), (44171, 464380), (46438, 441710), (66340, 309197), (88342, 232190), (92876, 220855), (116095, 176684)]