897575140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1571}}^1$

素因数の和:1658

約数の個数: 144

約数和(自身を含む): 2438662464

約数和(自身を除く): 1541087324

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 53, 55, 70, 77, 98, 106, 110, 140, 154, 196, 212, 220, 245, 265, 308, 371, 385, 490, 530, 539, 583, 742, 770, 980, 1060, 1078, 1166, 1484, 1540, 1571, 1855, 2156, 2332, 2597, 2695, 2915, 3142, 3710, 4081, 5194, 5390, 5830, 6284, 7420, 7855, 8162, 10388, 10780, 10997, 11660, 12985, 15710, 16324, 17281, 20405, 21994, 25970, 28567, 31420, 34562, 40810, 43988, 51940, 54985, 57134, 69124, 76979, 81620, 83263, 86405, 109970, 114268, 120967, 142835, 153958, 166526, 172810, 219940, 241934, 285670, 307916, 333052, 345620, 384895, 416315, 483868, 571340, 582841, 604835, 769790, 832630, 846769, 915893, 1165682, 1209670, 1539580, 1665260, 1693538, 1831786, 2331364, 2419340, 2914205, 3387076, 3663572, 4079887, 4233845, 4579465, 5828410, 6411251, 8159774, 8467690, 9158930, 11656820, 12822502, 16319548, 16935380, 18317860, 20399435, 25645004, 32056255, 40798870, 44878757, 64112510, 81597740, 89757514, 128225020, 179515028, 224393785, 448787570, 897575140]

約数ペア:

[(1, 897575140), (2, 448787570), (4, 224393785), (5, 179515028), (7, 128225020), (10, 89757514), (11, 81597740), (14, 64112510), (20, 44878757), (22, 40798870), (28, 32056255), (35, 25645004), (44, 20399435), (49, 18317860), (53, 16935380), (55, 16319548), (70, 12822502), (77, 11656820), (98, 9158930), (106, 8467690), (110, 8159774), (140, 6411251), (154, 5828410), (196, 4579465), (212, 4233845), (220, 4079887), (245, 3663572), (265, 3387076), (308, 2914205), (371, 2419340), (385, 2331364), (490, 1831786), (530, 1693538), (539, 1665260), (583, 1539580), (742, 1209670), (770, 1165682), (980, 915893), (1060, 846769), (1078, 832630), (1166, 769790), (1484, 604835), (1540, 582841), (1571, 571340), (1855, 483868), (2156, 416315), (2332, 384895), (2597, 345620), (2695, 333052), (2915, 307916), (3142, 285670), (3710, 241934), (4081, 219940), (5194, 172810), (5390, 166526), (5830, 153958), (6284, 142835), (7420, 120967), (7855, 114268), (8162, 109970), (10388, 86405), (10780, 83263), (10997, 81620), (11660, 76979), (12985, 69124), (15710, 57134), (16324, 54985), (17281, 51940), (20405, 43988), (21994, 40810), (25970, 34562), (28567, 31420)]