20162988760

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3210667}}^1$

素因数の和:3210835

約数の個数: 32

約数和(自身を含む): 45655698960

約数和(自身を除く): 25492710200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 3210667, 6421334, 12842668, 16053335, 25685336, 32106670, 64213340, 128426680, 504074719, 1008149438, 2016298876, 2520373595, 4032597752, 5040747190, 10081494380, 20162988760]

約数ペア:

[(1, 20162988760), (2, 10081494380), (4, 5040747190), (5, 4032597752), (8, 2520373595), (10, 2016298876), (20, 1008149438), (40, 504074719), (157, 128426680), (314, 64213340), (628, 32106670), (785, 25685336), (1256, 16053335), (1570, 12842668), (3140, 6421334), (6280, 3210667)]