25056920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{821}}^1$

素因数の和:948

約数の個数: 64

約数和(自身を含む): 65102400

約数和(自身を除く): 40045480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 545, 763, 821, 872, 1090, 1526, 1642, 2180, 3052, 3284, 3815, 4105, 4360, 5747, 6104, 6568, 7630, 8210, 11494, 15260, 16420, 22988, 28735, 30520, 32840, 45976, 57470, 89489, 114940, 178978, 229880, 357956, 447445, 626423, 715912, 894890, 1252846, 1789780, 2505692, 3132115, 3579560, 5011384, 6264230, 12528460, 25056920]

約数ペア:

[(1, 25056920), (2, 12528460), (4, 6264230), (5, 5011384), (7, 3579560), (8, 3132115), (10, 2505692), (14, 1789780), (20, 1252846), (28, 894890), (35, 715912), (40, 626423), (56, 447445), (70, 357956), (109, 229880), (140, 178978), (218, 114940), (280, 89489), (436, 57470), (545, 45976), (763, 32840), (821, 30520), (872, 28735), (1090, 22988), (1526, 16420), (1642, 15260), (2180, 11494), (3052, 8210), (3284, 7630), (3815, 6568), (4105, 6104), (4360, 5747)]