40021605

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 78551928

約数和(自身を除く): 38530323

約数列:

[1, 3, 5, 9, 13, 15, 37, 39, 43, 45, 65, 111, 117, 129, 185, 195, 215, 333, 387, 481, 555, 559, 585, 645, 1443, 1591, 1665, 1677, 1849, 1935, 2405, 2795, 4329, 4773, 5031, 5547, 7215, 7955, 8385, 9245, 14319, 16641, 20683, 21645, 23865, 24037, 25155, 27735, 62049, 68413, 71595, 72111, 83205, 103415, 120185, 186147, 205239, 216333, 310245, 342065, 360555, 615717, 889369, 930735, 1026195, 1081665, 2668107, 3078585, 4446845, 8004321, 13340535, 40021605]

約数ペア:

[(1, 40021605), (3, 13340535), (5, 8004321), (9, 4446845), (13, 3078585), (15, 2668107), (37, 1081665), (39, 1026195), (43, 930735), (45, 889369), (65, 615717), (111, 360555), (117, 342065), (129, 310245), (185, 216333), (195, 205239), (215, 186147), (333, 120185), (387, 103415), (481, 83205), (555, 72111), (559, 71595), (585, 68413), (645, 62049), (1443, 27735), (1591, 25155), (1665, 24037), (1677, 23865), (1849, 21645), (1935, 20683), (2405, 16641), (2795, 14319), (4329, 9245), (4773, 8385), (5031, 7955), (5547, 7215)]