31690000

素因数分解:

$2^4\times 5^4\times {\mathrm{3169}}^1$

素因数の和:3197

約数の個数: 50

約数和(自身を含む): 76748870

約数和(自身を除く): 45058870

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 3169, 5000, 6338, 10000, 12676, 15845, 25352, 31690, 50704, 63380, 79225, 126760, 158450, 253520, 316900, 396125, 633800, 792250, 1267600, 1584500, 1980625, 3169000, 3961250, 6338000, 7922500, 15845000, 31690000]

約数ペア:

[(1, 31690000), (2, 15845000), (4, 7922500), (5, 6338000), (8, 3961250), (10, 3169000), (16, 1980625), (20, 1584500), (25, 1267600), (40, 792250), (50, 633800), (80, 396125), (100, 316900), (125, 253520), (200, 158450), (250, 126760), (400, 79225), (500, 63380), (625, 50704), (1000, 31690), (1250, 25352), (2000, 15845), (2500, 12676), (3169, 10000), (5000, 6338)]