400707970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{739}}^1$

素因数の和:899

約数の個数: 64

約数和(自身を含む): 804101760

約数和(自身を除く): 403393790

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 97, 130, 194, 215, 430, 485, 559, 739, 970, 1118, 1261, 1478, 2522, 2795, 3695, 4171, 5590, 6305, 7390, 8342, 9607, 12610, 19214, 20855, 31777, 41710, 48035, 54223, 63554, 71683, 96070, 108446, 143366, 158885, 271115, 317770, 358415, 413101, 542230, 716830, 826202, 931879, 1863758, 2065505, 3082369, 4131010, 4659395, 6164738, 9318790, 15411845, 30823690, 40070797, 80141594, 200353985, 400707970]

約数ペア:

[(1, 400707970), (2, 200353985), (5, 80141594), (10, 40070797), (13, 30823690), (26, 15411845), (43, 9318790), (65, 6164738), (86, 4659395), (97, 4131010), (130, 3082369), (194, 2065505), (215, 1863758), (430, 931879), (485, 826202), (559, 716830), (739, 542230), (970, 413101), (1118, 358415), (1261, 317770), (1478, 271115), (2522, 158885), (2795, 143366), (3695, 108446), (4171, 96070), (5590, 71683), (6305, 63554), (7390, 54223), (8342, 48035), (9607, 41710), (12610, 31777), (19214, 20855)]