31486980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1229}}^1$

素因数の和:1309

約数の個数: 96

約数和(自身を含む): 102493440

約数和(自身を除く): 71006460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 61, 70, 84, 105, 122, 140, 183, 210, 244, 305, 366, 420, 427, 610, 732, 854, 915, 1220, 1229, 1281, 1708, 1830, 2135, 2458, 2562, 3660, 3687, 4270, 4916, 5124, 6145, 6405, 7374, 8540, 8603, 12290, 12810, 14748, 17206, 18435, 24580, 25620, 25809, 34412, 36870, 43015, 51618, 73740, 74969, 86030, 103236, 129045, 149938, 172060, 224907, 258090, 299876, 374845, 449814, 516180, 524783, 749690, 899628, 1049566, 1124535, 1499380, 1574349, 2099132, 2249070, 2623915, 3148698, 4498140, 5247830, 6297396, 7871745, 10495660, 15743490, 31486980]

約数ペア:

[(1, 31486980), (2, 15743490), (3, 10495660), (4, 7871745), (5, 6297396), (6, 5247830), (7, 4498140), (10, 3148698), (12, 2623915), (14, 2249070), (15, 2099132), (20, 1574349), (21, 1499380), (28, 1124535), (30, 1049566), (35, 899628), (42, 749690), (60, 524783), (61, 516180), (70, 449814), (84, 374845), (105, 299876), (122, 258090), (140, 224907), (183, 172060), (210, 149938), (244, 129045), (305, 103236), (366, 86030), (420, 74969), (427, 73740), (610, 51618), (732, 43015), (854, 36870), (915, 34412), (1220, 25809), (1229, 25620), (1281, 24580), (1708, 18435), (1830, 17206), (2135, 14748), (2458, 12810), (2562, 12290), (3660, 8603), (3687, 8540), (4270, 7374), (4916, 6405), (5124, 6145)]