18179525

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 28414848

約数和(自身を除く): 10235323

約数列:

[1, 5, 7, 13, 25, 35, 61, 65, 91, 131, 175, 305, 325, 427, 455, 655, 793, 917, 1525, 1703, 2135, 2275, 3275, 3965, 4585, 5551, 7991, 8515, 10675, 11921, 19825, 22925, 27755, 39955, 42575, 55937, 59605, 103883, 138775, 199775, 279685, 298025, 519415, 727181, 1398425, 2597075, 3635905, 18179525]

約数ペア:

[(1, 18179525), (5, 3635905), (7, 2597075), (13, 1398425), (25, 727181), (35, 519415), (61, 298025), (65, 279685), (91, 199775), (131, 138775), (175, 103883), (305, 59605), (325, 55937), (427, 42575), (455, 39955), (655, 27755), (793, 22925), (917, 19825), (1525, 11921), (1703, 10675), (2135, 8515), (2275, 7991), (3275, 5551), (3965, 4585)]