20314525

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 32105088

約数和(自身を除く): 11790563

約数列:

[1, 5, 7, 11, 25, 35, 55, 61, 77, 173, 175, 275, 305, 385, 427, 671, 865, 1211, 1525, 1903, 1925, 2135, 3355, 4325, 4697, 6055, 9515, 10553, 10675, 13321, 16775, 23485, 30275, 47575, 52765, 66605, 73871, 116083, 117425, 263825, 333025, 369355, 580415, 812581, 1846775, 2902075, 4062905, 20314525]

約数ペア:

[(1, 20314525), (5, 4062905), (7, 2902075), (11, 1846775), (25, 812581), (35, 580415), (55, 369355), (61, 333025), (77, 263825), (173, 117425), (175, 116083), (275, 73871), (305, 66605), (385, 52765), (427, 47575), (671, 30275), (865, 23485), (1211, 16775), (1525, 13321), (1903, 10675), (1925, 10553), (2135, 9515), (3355, 6055), (4325, 4697)]