239778890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{2677}}^1$

素因数の和:2763

約数の個数: 48

約数和(自身を含む): 476351928

約数和(自身を除く): 236573038

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 169, 265, 338, 530, 689, 845, 1378, 1690, 2677, 3445, 5354, 6890, 8957, 13385, 17914, 26770, 34801, 44785, 69602, 89570, 141881, 174005, 283762, 348010, 452413, 709405, 904826, 1418810, 1844453, 2262065, 3688906, 4524130, 9222265, 18444530, 23977889, 47955778, 119889445, 239778890]

約数ペア:

[(1, 239778890), (2, 119889445), (5, 47955778), (10, 23977889), (13, 18444530), (26, 9222265), (53, 4524130), (65, 3688906), (106, 2262065), (130, 1844453), (169, 1418810), (265, 904826), (338, 709405), (530, 452413), (689, 348010), (845, 283762), (1378, 174005), (1690, 141881), (2677, 89570), (3445, 69602), (5354, 44785), (6890, 34801), (8957, 26770), (13385, 17914)]