64548760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39359}}^1$

素因数の和:39411

約数の個数: 32

約数和(自身を含む): 148780800

約数和(自身を除く): 84232040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39359, 78718, 157436, 196795, 314872, 393590, 787180, 1574360, 1613719, 3227438, 6454876, 8068595, 12909752, 16137190, 32274380, 64548760]

約数ペア:

[(1, 64548760), (2, 32274380), (4, 16137190), (5, 12909752), (8, 8068595), (10, 6454876), (20, 3227438), (40, 1613719), (41, 1574360), (82, 787180), (164, 393590), (205, 314872), (328, 196795), (410, 157436), (820, 78718), (1640, 39359)]