64157600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:263

約数の個数: 144

約数和(自身を含む): 174988800

約数和(自身を除く): 110831200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 160, 199, 200, 208, 248, 260, 310, 325, 398, 400, 403, 416, 496, 520, 620, 650, 775, 796, 800, 806, 992, 995, 1040, 1240, 1300, 1550, 1592, 1612, 1990, 2015, 2080, 2480, 2587, 2600, 3100, 3184, 3224, 3980, 4030, 4960, 4975, 5174, 5200, 6169, 6200, 6368, 6448, 7960, 8060, 9950, 10075, 10348, 10400, 12338, 12400, 12896, 12935, 15920, 16120, 19900, 20150, 20696, 24676, 24800, 25870, 30845, 31840, 32240, 39800, 40300, 41392, 49352, 51740, 61690, 64480, 64675, 79600, 80197, 80600, 82784, 98704, 103480, 123380, 129350, 154225, 159200, 160394, 161200, 197408, 206960, 246760, 258700, 308450, 320788, 322400, 400985, 413920, 493520, 517400, 616900, 641576, 801970, 987040, 1034800, 1233800, 1283152, 1603940, 2004925, 2069600, 2467600, 2566304, 3207880, 4009850, 4935200, 6415760, 8019700, 12831520, 16039400, 32078800, 64157600]

約数ペア:

[(1, 64157600), (2, 32078800), (4, 16039400), (5, 12831520), (8, 8019700), (10, 6415760), (13, 4935200), (16, 4009850), (20, 3207880), (25, 2566304), (26, 2467600), (31, 2069600), (32, 2004925), (40, 1603940), (50, 1283152), (52, 1233800), (62, 1034800), (65, 987040), (80, 801970), (100, 641576), (104, 616900), (124, 517400), (130, 493520), (155, 413920), (160, 400985), (199, 322400), (200, 320788), (208, 308450), (248, 258700), (260, 246760), (310, 206960), (325, 197408), (398, 161200), (400, 160394), (403, 159200), (416, 154225), (496, 129350), (520, 123380), (620, 103480), (650, 98704), (775, 82784), (796, 80600), (800, 80197), (806, 79600), (992, 64675), (995, 64480), (1040, 61690), (1240, 51740), (1300, 49352), (1550, 41392), (1592, 40300), (1612, 39800), (1990, 32240), (2015, 31840), (2080, 30845), (2480, 25870), (2587, 24800), (2600, 24676), (3100, 20696), (3184, 20150), (3224, 19900), (3980, 16120), (4030, 15920), (4960, 12935), (4975, 12896), (5174, 12400), (5200, 12338), (6169, 10400), (6200, 10348), (6368, 10075), (6448, 9950), (7960, 8060)]