20005600

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1471}}^1$

素因数の和:1508

約数の個数: 72

約数和(自身を含む): 51746688

約数和(自身を除く): 31741088

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 136, 160, 170, 200, 272, 340, 400, 425, 544, 680, 800, 850, 1360, 1471, 1700, 2720, 2942, 3400, 5884, 6800, 7355, 11768, 13600, 14710, 23536, 25007, 29420, 36775, 47072, 50014, 58840, 73550, 100028, 117680, 125035, 147100, 200056, 235360, 250070, 294200, 400112, 500140, 588400, 625175, 800224, 1000280, 1176800, 1250350, 2000560, 2500700, 4001120, 5001400, 10002800, 20005600]

約数ペア:

[(1, 20005600), (2, 10002800), (4, 5001400), (5, 4001120), (8, 2500700), (10, 2000560), (16, 1250350), (17, 1176800), (20, 1000280), (25, 800224), (32, 625175), (34, 588400), (40, 500140), (50, 400112), (68, 294200), (80, 250070), (85, 235360), (100, 200056), (136, 147100), (160, 125035), (170, 117680), (200, 100028), (272, 73550), (340, 58840), (400, 50014), (425, 47072), (544, 36775), (680, 29420), (800, 25007), (850, 23536), (1360, 14710), (1471, 13600), (1700, 11768), (2720, 7355), (2942, 6800), (3400, 5884)]