201021185

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 259783200

約数和(自身を除く): 58762015

約数列:

[1, 5, 29, 37, 89, 145, 185, 421, 445, 1073, 2105, 2581, 3293, 5365, 12209, 12905, 15577, 16465, 37469, 61045, 77885, 95497, 187345, 451733, 477485, 1086601, 1386353, 2258665, 5433005, 6931765, 40204237, 201021185]

約数ペア:

[(1, 201021185), (5, 40204237), (29, 6931765), (37, 5433005), (89, 2258665), (145, 1386353), (185, 1086601), (421, 477485), (445, 451733), (1073, 187345), (2105, 95497), (2581, 77885), (3293, 61045), (5365, 37469), (12209, 16465), (12905, 15577)]