257875640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{3733}}^1$

素因数の和:3912

約数の個数: 64

約数和(自身を含む): 637169760

約数和(自身を除く): 379294120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 157, 220, 314, 440, 628, 785, 1256, 1570, 1727, 3140, 3454, 3733, 6280, 6908, 7466, 8635, 13816, 14932, 17270, 18665, 29864, 34540, 37330, 41063, 69080, 74660, 82126, 149320, 164252, 205315, 328504, 410630, 586081, 821260, 1172162, 1642520, 2344324, 2930405, 4688648, 5860810, 6446891, 11721620, 12893782, 23443240, 25787564, 32234455, 51575128, 64468910, 128937820, 257875640]

約数ペア:

[(1, 257875640), (2, 128937820), (4, 64468910), (5, 51575128), (8, 32234455), (10, 25787564), (11, 23443240), (20, 12893782), (22, 11721620), (40, 6446891), (44, 5860810), (55, 4688648), (88, 2930405), (110, 2344324), (157, 1642520), (220, 1172162), (314, 821260), (440, 586081), (628, 410630), (785, 328504), (1256, 205315), (1570, 164252), (1727, 149320), (3140, 82126), (3454, 74660), (3733, 69080), (6280, 41063), (6908, 37330), (7466, 34540), (8635, 29864), (13816, 18665), (14932, 17270)]