15499780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 33929280

約数和(自身を除く): 18429500

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 86, 134, 172, 215, 268, 269, 335, 430, 538, 670, 860, 1076, 1340, 1345, 2690, 2881, 5380, 5762, 11524, 11567, 14405, 18023, 23134, 28810, 36046, 46268, 57620, 57835, 72092, 90115, 115670, 180230, 231340, 360460, 774989, 1549978, 3099956, 3874945, 7749890, 15499780]

約数ペア:

[(1, 15499780), (2, 7749890), (4, 3874945), (5, 3099956), (10, 1549978), (20, 774989), (43, 360460), (67, 231340), (86, 180230), (134, 115670), (172, 90115), (215, 72092), (268, 57835), (269, 57620), (335, 46268), (430, 36046), (538, 28810), (670, 23134), (860, 18023), (1076, 14405), (1340, 11567), (1345, 11524), (2690, 5762), (2881, 5380)]