20047890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15541}}^1$

素因数の和:15594

約数の個数: 32

約数和(自身を含む): 49237056

約数和(自身を除く): 29189166

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 15541, 31082, 46623, 77705, 93246, 155410, 233115, 466230, 668263, 1336526, 2004789, 3341315, 4009578, 6682630, 10023945, 20047890]

約数ペア:

[(1, 20047890), (2, 10023945), (3, 6682630), (5, 4009578), (6, 3341315), (10, 2004789), (15, 1336526), (30, 668263), (43, 466230), (86, 233115), (129, 155410), (215, 93246), (258, 77705), (430, 46623), (645, 31082), (1290, 15541)]