72988380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{405491}}^1$

素因数の和:405506

約数の個数: 36

約数和(自身を含む): 221398632

約数和(自身を除く): 148410252

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 405491, 810982, 1216473, 1621964, 2027455, 2432946, 3649419, 4054910, 4865892, 6082365, 7298838, 8109820, 12164730, 14597676, 18247095, 24329460, 36494190, 72988380]

約数ペア:

[(1, 72988380), (2, 36494190), (3, 24329460), (4, 18247095), (5, 14597676), (6, 12164730), (9, 8109820), (10, 7298838), (12, 6082365), (15, 4865892), (18, 4054910), (20, 3649419), (30, 2432946), (36, 2027455), (45, 1621964), (60, 1216473), (90, 810982), (180, 405491)]