28746040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{19423}}^1$

素因数の和:19471

約数の個数: 32

約数和(自身を含む): 66430080

約数和(自身を除く): 37684040

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 19423, 38846, 77692, 97115, 155384, 194230, 388460, 718651, 776920, 1437302, 2874604, 3593255, 5749208, 7186510, 14373020, 28746040]

約数ペア:

[(1, 28746040), (2, 14373020), (4, 7186510), (5, 5749208), (8, 3593255), (10, 2874604), (20, 1437302), (37, 776920), (40, 718651), (74, 388460), (148, 194230), (185, 155384), (296, 97115), (370, 77692), (740, 38846), (1480, 19423)]