31947240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20479}}^1$

素因数の和:20506

約数の個数: 64

約数和(自身を含む): 103219200

約数和(自身を除く): 71271960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 20479, 40958, 61437, 81916, 102395, 122874, 163832, 204790, 245748, 266227, 307185, 409580, 491496, 532454, 614370, 798681, 819160, 1064908, 1228740, 1331135, 1597362, 2129816, 2457480, 2662270, 3194724, 3993405, 5324540, 6389448, 7986810, 10649080, 15973620, 31947240]

約数ペア:

[(1, 31947240), (2, 15973620), (3, 10649080), (4, 7986810), (5, 6389448), (6, 5324540), (8, 3993405), (10, 3194724), (12, 2662270), (13, 2457480), (15, 2129816), (20, 1597362), (24, 1331135), (26, 1228740), (30, 1064908), (39, 819160), (40, 798681), (52, 614370), (60, 532454), (65, 491496), (78, 409580), (104, 307185), (120, 266227), (130, 245748), (156, 204790), (195, 163832), (260, 122874), (312, 102395), (390, 81916), (520, 61437), (780, 40958), (1560, 20479)]