31381315

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{5569}}^1$

素因数の和:5611

約数の個数: 24

約数和(自身を含む): 45718560

約数和(自身を除く): 14337245

約数列:

[1, 5, 7, 23, 35, 49, 115, 161, 245, 805, 1127, 5569, 5635, 27845, 38983, 128087, 194915, 272881, 640435, 896609, 1364405, 4483045, 6276263, 31381315]

約数ペア:

[(1, 31381315), (5, 6276263), (7, 4483045), (23, 1364405), (35, 896609), (49, 640435), (115, 272881), (161, 194915), (245, 128087), (805, 38983), (1127, 27845), (5569, 5635)]