81012840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{691}}^1\times {\mathrm{977}}^1$

素因数の和:1682

約数の個数: 64

約数和(自身を含む): 243639360

約数和(自身を除く): 162626520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 691, 977, 1382, 1954, 2073, 2764, 2931, 3455, 3908, 4146, 4885, 5528, 5862, 6910, 7816, 8292, 9770, 10365, 11724, 13820, 14655, 16584, 19540, 20730, 23448, 27640, 29310, 39080, 41460, 58620, 82920, 117240, 675107, 1350214, 2025321, 2700428, 3375535, 4050642, 5400856, 6751070, 8101284, 10126605, 13502140, 16202568, 20253210, 27004280, 40506420, 81012840]

約数ペア:

[(1, 81012840), (2, 40506420), (3, 27004280), (4, 20253210), (5, 16202568), (6, 13502140), (8, 10126605), (10, 8101284), (12, 6751070), (15, 5400856), (20, 4050642), (24, 3375535), (30, 2700428), (40, 2025321), (60, 1350214), (120, 675107), (691, 117240), (977, 82920), (1382, 58620), (1954, 41460), (2073, 39080), (2764, 29310), (2931, 27640), (3455, 23448), (3908, 20730), (4146, 19540), (4885, 16584), (5528, 14655), (5862, 13820), (6910, 11724), (7816, 10365), (8292, 9770)]