18316025

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 28581504

約数和(自身を除く): 10265479

約数列:

[1, 5, 7, 13, 25, 35, 65, 83, 91, 97, 175, 325, 415, 455, 485, 581, 679, 1079, 1261, 2075, 2275, 2425, 2905, 3395, 5395, 6305, 7553, 8051, 8827, 14525, 16975, 26975, 31525, 37765, 40255, 44135, 56357, 104663, 188825, 201275, 220675, 281785, 523315, 732641, 1408925, 2616575, 3663205, 18316025]

約数ペア:

[(1, 18316025), (5, 3663205), (7, 2616575), (13, 1408925), (25, 732641), (35, 523315), (65, 281785), (83, 220675), (91, 201275), (97, 188825), (175, 104663), (325, 56357), (415, 44135), (455, 40255), (485, 37765), (581, 31525), (679, 26975), (1079, 16975), (1261, 14525), (2075, 8827), (2275, 8051), (2425, 7553), (2905, 6305), (3395, 5395)]