647703940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{739}}^1\times {\mathrm{3371}}^1$

素因数の和:4132

約数の個数: 48

約数和(自身を含む): 1467224640

約数和(自身を除く): 819520700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 739, 1478, 2956, 3371, 3695, 6742, 7390, 9607, 13484, 14780, 16855, 19214, 33710, 38428, 43823, 48035, 67420, 87646, 96070, 175292, 192140, 219115, 438230, 876460, 2491169, 4982338, 9964676, 12455845, 24911690, 32385197, 49823380, 64770394, 129540788, 161925985, 323851970, 647703940]

約数ペア:

[(1, 647703940), (2, 323851970), (4, 161925985), (5, 129540788), (10, 64770394), (13, 49823380), (20, 32385197), (26, 24911690), (52, 12455845), (65, 9964676), (130, 4982338), (260, 2491169), (739, 876460), (1478, 438230), (2956, 219115), (3371, 192140), (3695, 175292), (6742, 96070), (7390, 87646), (9607, 67420), (13484, 48035), (14780, 43823), (16855, 38428), (19214, 33710)]