217855848

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{709}}^1$

素因数の和:815

約数の個数: 128

約数和(自身を含む): 654336000

約数和(自身を除く): 436480152

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 56, 59, 62, 84, 93, 118, 124, 168, 177, 186, 217, 236, 248, 354, 372, 413, 434, 472, 651, 708, 709, 744, 826, 868, 1239, 1302, 1416, 1418, 1652, 1736, 1829, 2127, 2478, 2604, 2836, 3304, 3658, 4254, 4956, 4963, 5208, 5487, 5672, 7316, 8508, 9912, 9926, 10974, 12803, 14632, 14889, 17016, 19852, 21948, 21979, 25606, 29778, 38409, 39704, 41831, 43896, 43958, 51212, 59556, 65937, 76818, 83662, 87916, 102424, 119112, 125493, 131874, 153636, 153853, 167324, 175832, 250986, 263748, 292817, 307272, 307706, 334648, 461559, 501972, 527496, 585634, 615412, 878451, 923118, 1003944, 1171268, 1230824, 1296761, 1756902, 1846236, 2342536, 2593522, 3513804, 3692472, 3890283, 5187044, 7027608, 7780566, 9077327, 10374088, 15561132, 18154654, 27231981, 31122264, 36309308, 54463962, 72618616, 108927924, 217855848]

約数ペア:

[(1, 217855848), (2, 108927924), (3, 72618616), (4, 54463962), (6, 36309308), (7, 31122264), (8, 27231981), (12, 18154654), (14, 15561132), (21, 10374088), (24, 9077327), (28, 7780566), (31, 7027608), (42, 5187044), (56, 3890283), (59, 3692472), (62, 3513804), (84, 2593522), (93, 2342536), (118, 1846236), (124, 1756902), (168, 1296761), (177, 1230824), (186, 1171268), (217, 1003944), (236, 923118), (248, 878451), (354, 615412), (372, 585634), (413, 527496), (434, 501972), (472, 461559), (651, 334648), (708, 307706), (709, 307272), (744, 292817), (826, 263748), (868, 250986), (1239, 175832), (1302, 167324), (1416, 153853), (1418, 153636), (1652, 131874), (1736, 125493), (1829, 119112), (2127, 102424), (2478, 87916), (2604, 83662), (2836, 76818), (3304, 65937), (3658, 59556), (4254, 51212), (4956, 43958), (4963, 43896), (5208, 41831), (5487, 39704), (5672, 38409), (7316, 29778), (8508, 25606), (9912, 21979), (9926, 21948), (10974, 19852), (12803, 17016), (14632, 14889)]