28101890

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{5521}}^1$

素因数の和:6037

約数の個数: 16

約数和(自身を含む): 50691960

約数和(自身を除く): 22590070

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 5090, 5521, 11042, 27605, 55210, 2810189, 5620378, 14050945, 28101890]

約数ペア:

[(1, 28101890), (2, 14050945), (5, 5620378), (10, 2810189), (509, 55210), (1018, 27605), (2545, 11042), (5090, 5521)]