289449986

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 541900800

約数和(自身を除く): 252450814

約数列:

[1, 2, 7, 14, 23, 29, 46, 58, 139, 161, 203, 223, 278, 322, 406, 446, 667, 973, 1334, 1561, 1946, 3122, 3197, 4031, 4669, 5129, 6394, 6467, 8062, 9338, 10258, 12934, 22379, 28217, 30997, 35903, 44758, 45269, 56434, 61994, 71806, 90538, 92713, 148741, 185426, 216979, 297482, 433958, 648991, 712931, 898913, 1041187, 1297982, 1425862, 1797826, 2082374, 4990517, 6292391, 9981034, 12584782, 20674999, 41349998, 144724993, 289449986]

約数ペア:

[(1, 289449986), (2, 144724993), (7, 41349998), (14, 20674999), (23, 12584782), (29, 9981034), (46, 6292391), (58, 4990517), (139, 2082374), (161, 1797826), (203, 1425862), (223, 1297982), (278, 1041187), (322, 898913), (406, 712931), (446, 648991), (667, 433958), (973, 297482), (1334, 216979), (1561, 185426), (1946, 148741), (3122, 92713), (3197, 90538), (4031, 71806), (4669, 61994), (5129, 56434), (6394, 45269), (6467, 44758), (8062, 35903), (9338, 30997), (10258, 28217), (12934, 22379)]