19719090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1451}}^1$

素因数の和:1615

約数の個数: 48

約数和(自身を含む): 51644736

約数和(自身を除く): 31925646

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 151, 302, 453, 755, 906, 1359, 1451, 1510, 2265, 2718, 2902, 4353, 4530, 6795, 7255, 8706, 13059, 13590, 14510, 21765, 26118, 43530, 65295, 130590, 219101, 438202, 657303, 1095505, 1314606, 1971909, 2191010, 3286515, 3943818, 6573030, 9859545, 19719090]

約数ペア:

[(1, 19719090), (2, 9859545), (3, 6573030), (5, 3943818), (6, 3286515), (9, 2191010), (10, 1971909), (15, 1314606), (18, 1095505), (30, 657303), (45, 438202), (90, 219101), (151, 130590), (302, 65295), (453, 43530), (755, 26118), (906, 21765), (1359, 14510), (1451, 13590), (1510, 13059), (2265, 8706), (2718, 7255), (2902, 6795), (4353, 4530)]