78963200

素因数分解:

$2^9\times 5^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:258

約数の個数: 120

約数和(自身を含む): 202963200

約数和(自身を除く): 124000000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 199, 200, 248, 256, 310, 320, 398, 400, 496, 512, 620, 640, 775, 796, 800, 992, 995, 1240, 1280, 1550, 1592, 1600, 1984, 1990, 2480, 2560, 3100, 3184, 3200, 3968, 3980, 4960, 4975, 6169, 6200, 6368, 6400, 7936, 7960, 9920, 9950, 12338, 12400, 12736, 12800, 15872, 15920, 19840, 19900, 24676, 24800, 25472, 30845, 31840, 39680, 39800, 49352, 49600, 50944, 61690, 63680, 79360, 79600, 98704, 99200, 101888, 123380, 127360, 154225, 159200, 197408, 198400, 246760, 254720, 308450, 318400, 394816, 396800, 493520, 509440, 616900, 636800, 789632, 987040, 1233800, 1273600, 1579264, 1974080, 2467600, 2547200, 3158528, 3948160, 4935200, 7896320, 9870400, 15792640, 19740800, 39481600, 78963200]

約数ペア:

[(1, 78963200), (2, 39481600), (4, 19740800), (5, 15792640), (8, 9870400), (10, 7896320), (16, 4935200), (20, 3948160), (25, 3158528), (31, 2547200), (32, 2467600), (40, 1974080), (50, 1579264), (62, 1273600), (64, 1233800), (80, 987040), (100, 789632), (124, 636800), (128, 616900), (155, 509440), (160, 493520), (199, 396800), (200, 394816), (248, 318400), (256, 308450), (310, 254720), (320, 246760), (398, 198400), (400, 197408), (496, 159200), (512, 154225), (620, 127360), (640, 123380), (775, 101888), (796, 99200), (800, 98704), (992, 79600), (995, 79360), (1240, 63680), (1280, 61690), (1550, 50944), (1592, 49600), (1600, 49352), (1984, 39800), (1990, 39680), (2480, 31840), (2560, 30845), (3100, 25472), (3184, 24800), (3200, 24676), (3968, 19900), (3980, 19840), (4960, 15920), (4975, 15872), (6169, 12800), (6200, 12736), (6368, 12400), (6400, 12338), (7936, 9950), (7960, 9920)]