18581420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 96

約数和(自身を含む): 46992960

約数和(自身を除く): 28411540

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 73, 89, 110, 130, 143, 146, 178, 220, 260, 286, 292, 356, 365, 445, 572, 715, 730, 803, 890, 949, 979, 1157, 1430, 1460, 1606, 1780, 1898, 1958, 2314, 2860, 3212, 3796, 3916, 4015, 4628, 4745, 4895, 5785, 6497, 8030, 9490, 9790, 10439, 11570, 12727, 12994, 16060, 18980, 19580, 20878, 23140, 25454, 25988, 32485, 41756, 50908, 52195, 63635, 64970, 71467, 84461, 104390, 127270, 129940, 142934, 168922, 208780, 254540, 285868, 337844, 357335, 422305, 714670, 844610, 929071, 1429340, 1689220, 1858142, 3716284, 4645355, 9290710, 18581420]

約数ペア:

[(1, 18581420), (2, 9290710), (4, 4645355), (5, 3716284), (10, 1858142), (11, 1689220), (13, 1429340), (20, 929071), (22, 844610), (26, 714670), (44, 422305), (52, 357335), (55, 337844), (65, 285868), (73, 254540), (89, 208780), (110, 168922), (130, 142934), (143, 129940), (146, 127270), (178, 104390), (220, 84461), (260, 71467), (286, 64970), (292, 63635), (356, 52195), (365, 50908), (445, 41756), (572, 32485), (715, 25988), (730, 25454), (803, 23140), (890, 20878), (949, 19580), (979, 18980), (1157, 16060), (1430, 12994), (1460, 12727), (1606, 11570), (1780, 10439), (1898, 9790), (1958, 9490), (2314, 8030), (2860, 6497), (3212, 5785), (3796, 4895), (3916, 4745), (4015, 4628)]