31591690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{499}}^1$

素因数の和:1006

約数の個数: 32

約数和(自身を含む): 61488000

約数和(自身を除く): 29896310

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 487, 499, 974, 998, 2435, 2495, 4870, 4990, 6331, 6487, 12662, 12974, 31655, 32435, 63310, 64870, 243013, 486026, 1215065, 2430130, 3159169, 6318338, 15795845, 31591690]

約数ペア:

[(1, 31591690), (2, 15795845), (5, 6318338), (10, 3159169), (13, 2430130), (26, 1215065), (65, 486026), (130, 243013), (487, 64870), (499, 63310), (974, 32435), (998, 31655), (2435, 12974), (2495, 12662), (4870, 6487), (4990, 6331)]