20253460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{839}}^1$

素因数の和:936

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 25469420

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 710, 839, 1207, 1420, 1678, 2414, 3356, 4195, 4828, 6035, 8390, 12070, 14263, 16780, 24140, 28526, 57052, 59569, 71315, 119138, 142630, 238276, 285260, 297845, 595690, 1012673, 1191380, 2025346, 4050692, 5063365, 10126730, 20253460]

約数ペア:

[(1, 20253460), (2, 10126730), (4, 5063365), (5, 4050692), (10, 2025346), (17, 1191380), (20, 1012673), (34, 595690), (68, 297845), (71, 285260), (85, 238276), (142, 142630), (170, 119138), (284, 71315), (340, 59569), (355, 57052), (710, 28526), (839, 24140), (1207, 16780), (1420, 14263), (1678, 12070), (2414, 8390), (3356, 6035), (4195, 4828)]