31917080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61379}}^1$

素因数の和:61403

約数の個数: 32

約数和(自身を含む): 77338800

約数和(自身を除く): 45421720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 61379, 122758, 245516, 306895, 491032, 613790, 797927, 1227580, 1595854, 2455160, 3191708, 3989635, 6383416, 7979270, 15958540, 31917080]

約数ペア:

[(1, 31917080), (2, 15958540), (4, 7979270), (5, 6383416), (8, 3989635), (10, 3191708), (13, 2455160), (20, 1595854), (26, 1227580), (40, 797927), (52, 613790), (65, 491032), (104, 306895), (130, 245516), (260, 122758), (520, 61379)]