400718640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2459}}^1$

素因数の和:2579

約数の個数: 160

約数和(自身を含む): 1434908160

約数和(自身を除く): 1034189520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 97, 105, 112, 120, 140, 168, 194, 210, 240, 280, 291, 336, 388, 420, 485, 560, 582, 679, 776, 840, 970, 1164, 1358, 1455, 1552, 1680, 1940, 2037, 2328, 2459, 2716, 2910, 3395, 3880, 4074, 4656, 4918, 5432, 5820, 6790, 7377, 7760, 8148, 9836, 10185, 10864, 11640, 12295, 13580, 14754, 16296, 17213, 19672, 20370, 23280, 24590, 27160, 29508, 32592, 34426, 36885, 39344, 40740, 49180, 51639, 54320, 59016, 68852, 73770, 81480, 86065, 98360, 103278, 118032, 137704, 147540, 162960, 172130, 196720, 206556, 238523, 258195, 275408, 295080, 344260, 413112, 477046, 516390, 590160, 688520, 715569, 826224, 954092, 1032780, 1192615, 1377040, 1431138, 1669661, 1908184, 2065560, 2385230, 2862276, 3339322, 3577845, 3816368, 4131120, 4770460, 5008983, 5724552, 6678644, 7155690, 8348305, 9540920, 10017966, 11449104, 13357288, 14311380, 16696610, 19081840, 20035932, 25044915, 26714576, 28622760, 33393220, 40071864, 50089830, 57245520, 66786440, 80143728, 100179660, 133572880, 200359320, 400718640]

約数ペア:

[(1, 400718640), (2, 200359320), (3, 133572880), (4, 100179660), (5, 80143728), (6, 66786440), (7, 57245520), (8, 50089830), (10, 40071864), (12, 33393220), (14, 28622760), (15, 26714576), (16, 25044915), (20, 20035932), (21, 19081840), (24, 16696610), (28, 14311380), (30, 13357288), (35, 11449104), (40, 10017966), (42, 9540920), (48, 8348305), (56, 7155690), (60, 6678644), (70, 5724552), (80, 5008983), (84, 4770460), (97, 4131120), (105, 3816368), (112, 3577845), (120, 3339322), (140, 2862276), (168, 2385230), (194, 2065560), (210, 1908184), (240, 1669661), (280, 1431138), (291, 1377040), (336, 1192615), (388, 1032780), (420, 954092), (485, 826224), (560, 715569), (582, 688520), (679, 590160), (776, 516390), (840, 477046), (970, 413112), (1164, 344260), (1358, 295080), (1455, 275408), (1552, 258195), (1680, 238523), (1940, 206556), (2037, 196720), (2328, 172130), (2459, 162960), (2716, 147540), (2910, 137704), (3395, 118032), (3880, 103278), (4074, 98360), (4656, 86065), (4918, 81480), (5432, 73770), (5820, 68852), (6790, 59016), (7377, 54320), (7760, 51639), (8148, 49180), (9836, 40740), (10185, 39344), (10864, 36885), (11640, 34426), (12295, 32592), (13580, 29508), (14754, 27160), (16296, 24590), (17213, 23280), (19672, 20370)]