31479920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 78744960

約数和(自身を除く): 47265040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 79, 80, 85, 136, 158, 170, 272, 293, 316, 340, 395, 586, 632, 680, 790, 1172, 1264, 1343, 1360, 1465, 1580, 2344, 2686, 2930, 3160, 4688, 4981, 5372, 5860, 6320, 6715, 9962, 10744, 11720, 13430, 19924, 21488, 23147, 23440, 24905, 26860, 39848, 46294, 49810, 53720, 79696, 92588, 99620, 107440, 115735, 185176, 199240, 231470, 370352, 393499, 398480, 462940, 786998, 925880, 1573996, 1851760, 1967495, 3147992, 3934990, 6295984, 7869980, 15739960, 31479920]

約数ペア:

[(1, 31479920), (2, 15739960), (4, 7869980), (5, 6295984), (8, 3934990), (10, 3147992), (16, 1967495), (17, 1851760), (20, 1573996), (34, 925880), (40, 786998), (68, 462940), (79, 398480), (80, 393499), (85, 370352), (136, 231470), (158, 199240), (170, 185176), (272, 115735), (293, 107440), (316, 99620), (340, 92588), (395, 79696), (586, 53720), (632, 49810), (680, 46294), (790, 39848), (1172, 26860), (1264, 24905), (1343, 23440), (1360, 23147), (1465, 21488), (1580, 19924), (2344, 13430), (2686, 11720), (2930, 10744), (3160, 9962), (4688, 6715), (4981, 6320), (5372, 5860)]