399445920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6451}}^1$

素因数の和:6515

約数の個数: 144

約数和(自身を含む): 1395025632

約数和(自身を除く): 995579712

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 96, 120, 129, 144, 160, 172, 180, 215, 240, 258, 288, 344, 360, 387, 430, 480, 516, 645, 688, 720, 774, 860, 1032, 1290, 1376, 1440, 1548, 1720, 1935, 2064, 2580, 3096, 3440, 3870, 4128, 5160, 6192, 6451, 6880, 7740, 10320, 12384, 12902, 15480, 19353, 20640, 25804, 30960, 32255, 38706, 51608, 58059, 61920, 64510, 77412, 96765, 103216, 116118, 129020, 154824, 193530, 206432, 232236, 258040, 277393, 290295, 309648, 387060, 464472, 516080, 554786, 580590, 619296, 774120, 832179, 928944, 1032160, 1109572, 1161180, 1386965, 1548240, 1664358, 1857888, 2219144, 2322360, 2496537, 2773930, 3096480, 3328716, 4160895, 4438288, 4644720, 4993074, 5547860, 6657432, 8321790, 8876576, 9289440, 9986148, 11095720, 12482685, 13314864, 16643580, 19972296, 22191440, 24965370, 26629728, 33287160, 39944592, 44382880, 49930740, 66574320, 79889184, 99861480, 133148640, 199722960, 399445920]

約数ペア:

[(1, 399445920), (2, 199722960), (3, 133148640), (4, 99861480), (5, 79889184), (6, 66574320), (8, 49930740), (9, 44382880), (10, 39944592), (12, 33287160), (15, 26629728), (16, 24965370), (18, 22191440), (20, 19972296), (24, 16643580), (30, 13314864), (32, 12482685), (36, 11095720), (40, 9986148), (43, 9289440), (45, 8876576), (48, 8321790), (60, 6657432), (72, 5547860), (80, 4993074), (86, 4644720), (90, 4438288), (96, 4160895), (120, 3328716), (129, 3096480), (144, 2773930), (160, 2496537), (172, 2322360), (180, 2219144), (215, 1857888), (240, 1664358), (258, 1548240), (288, 1386965), (344, 1161180), (360, 1109572), (387, 1032160), (430, 928944), (480, 832179), (516, 774120), (645, 619296), (688, 580590), (720, 554786), (774, 516080), (860, 464472), (1032, 387060), (1290, 309648), (1376, 290295), (1440, 277393), (1548, 258040), (1720, 232236), (1935, 206432), (2064, 193530), (2580, 154824), (3096, 129020), (3440, 116118), (3870, 103216), (4128, 96765), (5160, 77412), (6192, 64510), (6451, 61920), (6880, 58059), (7740, 51608), (10320, 38706), (12384, 32255), (12902, 30960), (15480, 25804), (19353, 20640)]