31018390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{887}}^1$

素因数の和:1176

約数の個数: 32

約数和(自身を含む): 60419520

約数和(自身を除く): 29401130

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 269, 538, 887, 1345, 1774, 2690, 3497, 4435, 6994, 8870, 11531, 17485, 23062, 34970, 57655, 115310, 238603, 477206, 1193015, 2386030, 3101839, 6203678, 15509195, 31018390]

約数ペア:

[(1, 31018390), (2, 15509195), (5, 6203678), (10, 3101839), (13, 2386030), (26, 1193015), (65, 477206), (130, 238603), (269, 115310), (538, 57655), (887, 34970), (1345, 23062), (1774, 17485), (2690, 11531), (3497, 8870), (4435, 6994)]