252237920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{397}}^1$

素因数の和:461

約数の個数: 144

約数和(自身を含む): 687829968

約数和(自身を除く): 435592048

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 160, 176, 190, 209, 220, 304, 352, 361, 380, 397, 418, 440, 608, 722, 760, 794, 836, 880, 1045, 1444, 1520, 1588, 1672, 1760, 1805, 1985, 2090, 2888, 3040, 3176, 3344, 3610, 3970, 3971, 4180, 4367, 5776, 6352, 6688, 7220, 7543, 7940, 7942, 8360, 8734, 11552, 12704, 14440, 15086, 15880, 15884, 16720, 17468, 19855, 21835, 28880, 30172, 31760, 31768, 33440, 34936, 37715, 39710, 43670, 57760, 60344, 63520, 63536, 69872, 75430, 79420, 82973, 87340, 120688, 127072, 139744, 143317, 150860, 158840, 165946, 174680, 241376, 286634, 301720, 317680, 331892, 349360, 414865, 573268, 603440, 635360, 663784, 698720, 716585, 829730, 1146536, 1206880, 1327568, 1433170, 1576487, 1659460, 2293072, 2655136, 2866340, 3152974, 3318920, 4586144, 5732680, 6305948, 6637840, 7882435, 11465360, 12611896, 13275680, 15764870, 22930720, 25223792, 31529740, 50447584, 63059480, 126118960, 252237920]

約数ペア:

[(1, 252237920), (2, 126118960), (4, 63059480), (5, 50447584), (8, 31529740), (10, 25223792), (11, 22930720), (16, 15764870), (19, 13275680), (20, 12611896), (22, 11465360), (32, 7882435), (38, 6637840), (40, 6305948), (44, 5732680), (55, 4586144), (76, 3318920), (80, 3152974), (88, 2866340), (95, 2655136), (110, 2293072), (152, 1659460), (160, 1576487), (176, 1433170), (190, 1327568), (209, 1206880), (220, 1146536), (304, 829730), (352, 716585), (361, 698720), (380, 663784), (397, 635360), (418, 603440), (440, 573268), (608, 414865), (722, 349360), (760, 331892), (794, 317680), (836, 301720), (880, 286634), (1045, 241376), (1444, 174680), (1520, 165946), (1588, 158840), (1672, 150860), (1760, 143317), (1805, 139744), (1985, 127072), (2090, 120688), (2888, 87340), (3040, 82973), (3176, 79420), (3344, 75430), (3610, 69872), (3970, 63536), (3971, 63520), (4180, 60344), (4367, 57760), (5776, 43670), (6352, 39710), (6688, 37715), (7220, 34936), (7543, 33440), (7940, 31768), (7942, 31760), (8360, 30172), (8734, 28880), (11552, 21835), (12704, 19855), (14440, 17468), (15086, 16720), (15880, 15884)]