31122780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39901}}^1$

素因数の和:39926

約数の個数: 48

約数和(自身を含む): 93849504

約数和(自身を除く): 62726724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 39901, 79802, 119703, 159604, 199505, 239406, 399010, 478812, 518713, 598515, 798020, 1037426, 1197030, 1556139, 2074852, 2394060, 2593565, 3112278, 5187130, 6224556, 7780695, 10374260, 15561390, 31122780]

約数ペア:

[(1, 31122780), (2, 15561390), (3, 10374260), (4, 7780695), (5, 6224556), (6, 5187130), (10, 3112278), (12, 2593565), (13, 2394060), (15, 2074852), (20, 1556139), (26, 1197030), (30, 1037426), (39, 798020), (52, 598515), (60, 518713), (65, 478812), (78, 399010), (130, 239406), (156, 199505), (195, 159604), (260, 119703), (390, 79802), (780, 39901)]