815163125

素因数分解:

$5^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8101}}^1$

素因数の和:8151

約数の個数: 40

約数和(自身を含む): 1214911104

約数和(自身を除く): 399747979

約数列:

[1, 5, 7, 23, 25, 35, 115, 125, 161, 175, 575, 625, 805, 875, 2875, 4025, 4375, 8101, 14375, 20125, 40505, 56707, 100625, 186323, 202525, 283535, 931615, 1012625, 1304261, 1417675, 4658075, 5063125, 6521305, 7088375, 23290375, 32606525, 35441875, 116451875, 163032625, 815163125]

約数ペア:

[(1, 815163125), (5, 163032625), (7, 116451875), (23, 35441875), (25, 32606525), (35, 23290375), (115, 7088375), (125, 6521305), (161, 5063125), (175, 4658075), (575, 1417675), (625, 1304261), (805, 1012625), (875, 931615), (2875, 283535), (4025, 202525), (4375, 186323), (8101, 100625), (14375, 56707), (20125, 40505)]