18857540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:153

約数の個数: 96

約数和(自身を含む): 45934560

約数和(自身を除く): 27077020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 41, 52, 58, 61, 65, 82, 116, 122, 130, 145, 164, 205, 244, 260, 290, 305, 377, 410, 533, 580, 610, 754, 793, 820, 1066, 1189, 1220, 1508, 1586, 1769, 1885, 2132, 2378, 2501, 2665, 3172, 3538, 3770, 3965, 4756, 5002, 5330, 5945, 7076, 7540, 7930, 8845, 10004, 10660, 11890, 12505, 15457, 15860, 17690, 22997, 23780, 25010, 30914, 32513, 35380, 45994, 50020, 61828, 65026, 72529, 77285, 91988, 114985, 130052, 145058, 154570, 162565, 229970, 290116, 309140, 325130, 362645, 459940, 650260, 725290, 942877, 1450580, 1885754, 3771508, 4714385, 9428770, 18857540]

約数ペア:

[(1, 18857540), (2, 9428770), (4, 4714385), (5, 3771508), (10, 1885754), (13, 1450580), (20, 942877), (26, 725290), (29, 650260), (41, 459940), (52, 362645), (58, 325130), (61, 309140), (65, 290116), (82, 229970), (116, 162565), (122, 154570), (130, 145058), (145, 130052), (164, 114985), (205, 91988), (244, 77285), (260, 72529), (290, 65026), (305, 61828), (377, 50020), (410, 45994), (533, 35380), (580, 32513), (610, 30914), (754, 25010), (793, 23780), (820, 22997), (1066, 17690), (1189, 15860), (1220, 15457), (1508, 12505), (1586, 11890), (1769, 10660), (1885, 10004), (2132, 8845), (2378, 7930), (2501, 7540), (2665, 7076), (3172, 5945), (3538, 5330), (3770, 5002), (3965, 4756)]