28680925

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1801}}^1$

素因数の和:1838

約数の個数: 36

約数和(自身を含む): 44577876

約数和(自身を除く): 15896951

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 175, 245, 325, 455, 637, 1225, 1801, 2275, 3185, 9005, 12607, 15925, 23413, 45025, 63035, 88249, 117065, 163891, 315175, 441245, 585325, 819455, 1147237, 2206225, 4097275, 5736185, 28680925]

約数ペア:

[(1, 28680925), (5, 5736185), (7, 4097275), (13, 2206225), (25, 1147237), (35, 819455), (49, 585325), (65, 441245), (91, 315175), (175, 163891), (245, 117065), (325, 88249), (455, 63035), (637, 45025), (1225, 23413), (1801, 15925), (2275, 12607), (3185, 9005)]