645366972

素因数分解:

$2^2\times 3^1\times {\mathrm{101}}^1\times {\mathrm{647}}^1\times {\mathrm{823}}^1$

素因数の和:1578

約数の個数: 48

約数和(自身を含む): 1524966912

約数和(自身を除く): 879599940

約数列:

[1, 2, 3, 4, 6, 12, 101, 202, 303, 404, 606, 647, 823, 1212, 1294, 1646, 1941, 2469, 2588, 3292, 3882, 4938, 7764, 9876, 65347, 83123, 130694, 166246, 196041, 249369, 261388, 332492, 392082, 498738, 532481, 784164, 997476, 1064962, 1597443, 2129924, 3194886, 6389772, 53780581, 107561162, 161341743, 215122324, 322683486, 645366972]

約数ペア:

[(1, 645366972), (2, 322683486), (3, 215122324), (4, 161341743), (6, 107561162), (12, 53780581), (101, 6389772), (202, 3194886), (303, 2129924), (404, 1597443), (606, 1064962), (647, 997476), (823, 784164), (1212, 532481), (1294, 498738), (1646, 392082), (1941, 332492), (2469, 261388), (2588, 249369), (3292, 196041), (3882, 166246), (4938, 130694), (7764, 83123), (9876, 65347)]