31028235

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 60702720

約数和(自身を除く): 29674485

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 103, 105, 133, 151, 285, 309, 399, 453, 515, 665, 721, 755, 1057, 1545, 1957, 1995, 2163, 2265, 2869, 3171, 3605, 5285, 5871, 8607, 9785, 10815, 13699, 14345, 15553, 15855, 20083, 29355, 41097, 43035, 46659, 60249, 68495, 77765, 100415, 108871, 205485, 233295, 295507, 301245, 326613, 544355, 886521, 1477535, 1633065, 2068549, 4432605, 6205647, 10342745, 31028235]

約数ペア:

[(1, 31028235), (3, 10342745), (5, 6205647), (7, 4432605), (15, 2068549), (19, 1633065), (21, 1477535), (35, 886521), (57, 544355), (95, 326613), (103, 301245), (105, 295507), (133, 233295), (151, 205485), (285, 108871), (309, 100415), (399, 77765), (453, 68495), (515, 60249), (665, 46659), (721, 43035), (755, 41097), (1057, 29355), (1545, 20083), (1957, 15855), (1995, 15553), (2163, 14345), (2265, 13699), (2869, 10815), (3171, 9785), (3605, 8607), (5285, 5871)]