55871920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1733}}^1$

素因数の和:1790

約数の個数: 80

約数和(自身を含む): 144490752

約数和(自身を除く): 88618832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 1733, 2015, 2480, 3224, 3466, 4030, 6448, 6932, 8060, 8665, 13864, 16120, 17330, 22529, 27728, 32240, 34660, 45058, 53723, 69320, 90116, 107446, 112645, 138640, 180232, 214892, 225290, 268615, 360464, 429784, 450580, 537230, 698399, 859568, 901160, 1074460, 1396798, 1802320, 2148920, 2793596, 3491995, 4297840, 5587192, 6983990, 11174384, 13967980, 27935960, 55871920]

約数ペア:

[(1, 55871920), (2, 27935960), (4, 13967980), (5, 11174384), (8, 6983990), (10, 5587192), (13, 4297840), (16, 3491995), (20, 2793596), (26, 2148920), (31, 1802320), (40, 1396798), (52, 1074460), (62, 901160), (65, 859568), (80, 698399), (104, 537230), (124, 450580), (130, 429784), (155, 360464), (208, 268615), (248, 225290), (260, 214892), (310, 180232), (403, 138640), (496, 112645), (520, 107446), (620, 90116), (806, 69320), (1040, 53723), (1240, 45058), (1612, 34660), (1733, 32240), (2015, 27728), (2480, 22529), (3224, 17330), (3466, 16120), (4030, 13864), (6448, 8665), (6932, 8060)]