9870400

素因数分解:

$2^6\times 5^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:252

約数の個数: 84

約数和(自身を含む): 25196800

約数和(自身を除く): 15326400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 155, 160, 199, 200, 248, 310, 320, 398, 400, 496, 620, 775, 796, 800, 992, 995, 1240, 1550, 1592, 1600, 1984, 1990, 2480, 3100, 3184, 3980, 4960, 4975, 6169, 6200, 6368, 7960, 9920, 9950, 12338, 12400, 12736, 15920, 19900, 24676, 24800, 30845, 31840, 39800, 49352, 49600, 61690, 63680, 79600, 98704, 123380, 154225, 159200, 197408, 246760, 308450, 318400, 394816, 493520, 616900, 987040, 1233800, 1974080, 2467600, 4935200, 9870400]

約数ペア:

[(1, 9870400), (2, 4935200), (4, 2467600), (5, 1974080), (8, 1233800), (10, 987040), (16, 616900), (20, 493520), (25, 394816), (31, 318400), (32, 308450), (40, 246760), (50, 197408), (62, 159200), (64, 154225), (80, 123380), (100, 98704), (124, 79600), (155, 63680), (160, 61690), (199, 49600), (200, 49352), (248, 39800), (310, 31840), (320, 30845), (398, 24800), (400, 24676), (496, 19900), (620, 15920), (775, 12736), (796, 12400), (800, 12338), (992, 9950), (995, 9920), (1240, 7960), (1550, 6368), (1592, 6200), (1600, 6169), (1984, 4975), (1990, 4960), (2480, 3980), (3100, 3184)]