661886394

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{14407}}^1$

素因数の和:14475

約数の個数: 64

約数和(自身を含む): 1549148160

約数和(自身を除く): 887261766

約数列:

[1, 2, 3, 6, 13, 19, 26, 31, 38, 39, 57, 62, 78, 93, 114, 186, 247, 403, 494, 589, 741, 806, 1178, 1209, 1482, 1767, 2418, 3534, 7657, 14407, 15314, 22971, 28814, 43221, 45942, 86442, 187291, 273733, 374582, 446617, 547466, 561873, 821199, 893234, 1123746, 1339851, 1642398, 2679702, 3558529, 5806021, 7117058, 8485723, 10675587, 11612042, 16971446, 17418063, 21351174, 25457169, 34836126, 50914338, 110314399, 220628798, 330943197, 661886394]

約数ペア:

[(1, 661886394), (2, 330943197), (3, 220628798), (6, 110314399), (13, 50914338), (19, 34836126), (26, 25457169), (31, 21351174), (38, 17418063), (39, 16971446), (57, 11612042), (62, 10675587), (78, 8485723), (93, 7117058), (114, 5806021), (186, 3558529), (247, 2679702), (403, 1642398), (494, 1339851), (589, 1123746), (741, 893234), (806, 821199), (1178, 561873), (1209, 547466), (1482, 446617), (1767, 374582), (2418, 273733), (3534, 187291), (7657, 86442), (14407, 45942), (15314, 43221), (22971, 28814)]