20784130

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 38683008

約数和(自身を除く): 17898878

約数列:

[1, 2, 5, 10, 41, 82, 163, 205, 311, 326, 410, 622, 815, 1555, 1630, 3110, 6683, 12751, 13366, 25502, 33415, 50693, 63755, 66830, 101386, 127510, 253465, 506930, 2078413, 4156826, 10392065, 20784130]

約数ペア:

[(1, 20784130), (2, 10392065), (5, 4156826), (10, 2078413), (41, 506930), (82, 253465), (163, 127510), (205, 101386), (311, 66830), (326, 63755), (410, 50693), (622, 33415), (815, 25502), (1555, 13366), (1630, 12751), (3110, 6683)]