72001780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2887}}^1$

素因数の和:2968

約数の個数: 48

約数和(自身を含む): 160110720

約数和(自身を除く): 88108940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 86, 116, 145, 172, 215, 290, 430, 580, 860, 1247, 2494, 2887, 4988, 5774, 6235, 11548, 12470, 14435, 24940, 28870, 57740, 83723, 124141, 167446, 248282, 334892, 418615, 496564, 620705, 837230, 1241410, 1674460, 2482820, 3600089, 7200178, 14400356, 18000445, 36000890, 72001780]

約数ペア:

[(1, 72001780), (2, 36000890), (4, 18000445), (5, 14400356), (10, 7200178), (20, 3600089), (29, 2482820), (43, 1674460), (58, 1241410), (86, 837230), (116, 620705), (145, 496564), (172, 418615), (215, 334892), (290, 248282), (430, 167446), (580, 124141), (860, 83723), (1247, 57740), (2494, 28870), (2887, 24940), (4988, 14435), (5774, 12470), (6235, 11548)]