640654326

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^2\times {\mathrm{70201}}^1$

素因数の和:70238

約数の個数: 48

約数和(自身を含む): 1541635920

約数和(自身を除く): 900981594

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 169, 234, 338, 351, 507, 702, 1014, 1521, 3042, 4563, 9126, 70201, 140402, 210603, 421206, 631809, 912613, 1263618, 1825226, 1895427, 2737839, 3790854, 5475678, 8213517, 11863969, 16427034, 23727938, 24640551, 35591907, 49281102, 71183814, 106775721, 213551442, 320327163, 640654326]

約数ペア:

[(1, 640654326), (2, 320327163), (3, 213551442), (6, 106775721), (9, 71183814), (13, 49281102), (18, 35591907), (26, 24640551), (27, 23727938), (39, 16427034), (54, 11863969), (78, 8213517), (117, 5475678), (169, 3790854), (234, 2737839), (338, 1895427), (351, 1825226), (507, 1263618), (702, 912613), (1014, 631809), (1521, 421206), (3042, 210603), (4563, 140402), (9126, 70201)]