31941390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81901}}^1$

素因数の和:81924

約数の個数: 32

約数和(自身を含む): 82557216

約数和(自身を除く): 50615826

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 81901, 163802, 245703, 409505, 491406, 819010, 1064713, 1228515, 2129426, 2457030, 3194139, 5323565, 6388278, 10647130, 15970695, 31941390]

約数ペア:

[(1, 31941390), (2, 15970695), (3, 10647130), (5, 6388278), (6, 5323565), (10, 3194139), (13, 2457030), (15, 2129426), (26, 1228515), (30, 1064713), (39, 819010), (65, 491406), (78, 409505), (130, 245703), (195, 163802), (390, 81901)]