18965580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7351}}^1$

素因数の和:7406

約数の個数: 48

約数和(自身を含む): 54345984

約数和(自身を除く): 35380404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 7351, 14702, 22053, 29404, 36755, 44106, 73510, 88212, 110265, 147020, 220530, 316093, 441060, 632186, 948279, 1264372, 1580465, 1896558, 3160930, 3793116, 4741395, 6321860, 9482790, 18965580]

約数ペア:

[(1, 18965580), (2, 9482790), (3, 6321860), (4, 4741395), (5, 3793116), (6, 3160930), (10, 1896558), (12, 1580465), (15, 1264372), (20, 948279), (30, 632186), (43, 441060), (60, 316093), (86, 220530), (129, 147020), (172, 110265), (215, 88212), (258, 73510), (430, 44106), (516, 36755), (645, 29404), (860, 22053), (1290, 14702), (2580, 7351)]