31272880

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1181}}^1$

素因数の和:1525

約数の個数: 40

約数和(自身を含む): 72990864

約数和(自身を除く): 41717984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 1181, 1324, 1655, 2362, 2648, 3310, 4724, 5296, 5905, 6620, 9448, 11810, 13240, 18896, 23620, 26480, 47240, 94480, 390911, 781822, 1563644, 1954555, 3127288, 3909110, 6254576, 7818220, 15636440, 31272880]

約数ペア:

[(1, 31272880), (2, 15636440), (4, 7818220), (5, 6254576), (8, 3909110), (10, 3127288), (16, 1954555), (20, 1563644), (40, 781822), (80, 390911), (331, 94480), (662, 47240), (1181, 26480), (1324, 23620), (1655, 18896), (2362, 13240), (2648, 11810), (3310, 9448), (4724, 6620), (5296, 5905)]