20841080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{3083}}^1$

素因数の和:3120

約数の個数: 48

約数和(自身を含む): 50793480

約数和(自身を除く): 29952400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3083, 3380, 6166, 6760, 12332, 15415, 24664, 30830, 40079, 61660, 80158, 123320, 160316, 200395, 320632, 400790, 521027, 801580, 1042054, 1603160, 2084108, 2605135, 4168216, 5210270, 10420540, 20841080]

約数ペア:

[(1, 20841080), (2, 10420540), (4, 5210270), (5, 4168216), (8, 2605135), (10, 2084108), (13, 1603160), (20, 1042054), (26, 801580), (40, 521027), (52, 400790), (65, 320632), (104, 200395), (130, 160316), (169, 123320), (260, 80158), (338, 61660), (520, 40079), (676, 30830), (845, 24664), (1352, 15415), (1690, 12332), (3083, 6760), (3380, 6166)]