80520780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{25321}}^1$

素因数の和:25386

約数の個数: 48

約数和(自身を含む): 229721184

約数和(自身を除く): 149200404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 25321, 50642, 75963, 101284, 126605, 151926, 253210, 303852, 379815, 506420, 759630, 1342013, 1519260, 2684026, 4026039, 5368052, 6710065, 8052078, 13420130, 16104156, 20130195, 26840260, 40260390, 80520780]

約数ペア:

[(1, 80520780), (2, 40260390), (3, 26840260), (4, 20130195), (5, 16104156), (6, 13420130), (10, 8052078), (12, 6710065), (15, 5368052), (20, 4026039), (30, 2684026), (53, 1519260), (60, 1342013), (106, 759630), (159, 506420), (212, 379815), (265, 303852), (318, 253210), (530, 151926), (636, 126605), (795, 101284), (1060, 75963), (1590, 50642), (3180, 25321)]