213974775

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1319}}^1$

素因数の和:1445

約数の個数: 72

約数和(自身を含む): 442590720

約数和(自身を除く): 228615945

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 103, 105, 175, 225, 309, 315, 515, 525, 721, 927, 1319, 1545, 1575, 2163, 2575, 3605, 3957, 4635, 6489, 6595, 7725, 9233, 10815, 11871, 18025, 19785, 23175, 27699, 32445, 32975, 46165, 54075, 59355, 83097, 98925, 135857, 138495, 162225, 230825, 296775, 407571, 415485, 679285, 692475, 950999, 1222713, 2037855, 2077425, 2852997, 3396425, 4754995, 6113565, 8558991, 10189275, 14264985, 23774975, 30567825, 42794955, 71324925, 213974775]

約数ペア:

[(1, 213974775), (3, 71324925), (5, 42794955), (7, 30567825), (9, 23774975), (15, 14264985), (21, 10189275), (25, 8558991), (35, 6113565), (45, 4754995), (63, 3396425), (75, 2852997), (103, 2077425), (105, 2037855), (175, 1222713), (225, 950999), (309, 692475), (315, 679285), (515, 415485), (525, 407571), (721, 296775), (927, 230825), (1319, 162225), (1545, 138495), (1575, 135857), (2163, 98925), (2575, 83097), (3605, 59355), (3957, 54075), (4635, 46165), (6489, 32975), (6595, 32445), (7725, 27699), (9233, 23175), (10815, 19785), (11871, 18025)]