20806290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1531}}^1$

素因数の和:1695

約数の個数: 48

約数和(自身を含む): 54490176

約数和(自身を除く): 33683886

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 151, 302, 453, 755, 906, 1359, 1510, 1531, 2265, 2718, 3062, 4530, 4593, 6795, 7655, 9186, 13590, 13779, 15310, 22965, 27558, 45930, 68895, 137790, 231181, 462362, 693543, 1155905, 1387086, 2080629, 2311810, 3467715, 4161258, 6935430, 10403145, 20806290]

約数ペア:

[(1, 20806290), (2, 10403145), (3, 6935430), (5, 4161258), (6, 3467715), (9, 2311810), (10, 2080629), (15, 1387086), (18, 1155905), (30, 693543), (45, 462362), (90, 231181), (151, 137790), (302, 68895), (453, 45930), (755, 27558), (906, 22965), (1359, 15310), (1510, 13779), (1531, 13590), (2265, 9186), (2718, 7655), (3062, 6795), (4530, 4593)]