20105390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{521}}^1$

素因数の和:772

約数の個数: 32

約数和(自身を含む): 38561184

約数和(自身を除く): 18455794

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 227, 454, 521, 1042, 1135, 2270, 2605, 3859, 5210, 7718, 8857, 17714, 19295, 38590, 44285, 88570, 118267, 236534, 591335, 1182670, 2010539, 4021078, 10052695, 20105390]

約数ペア:

[(1, 20105390), (2, 10052695), (5, 4021078), (10, 2010539), (17, 1182670), (34, 591335), (85, 236534), (170, 118267), (227, 88570), (454, 44285), (521, 38590), (1042, 19295), (1135, 17714), (2270, 8857), (2605, 7718), (3859, 5210)]