210956980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21929}}^1$

素因数の和:21988

約数の個数: 48

約数和(自身を含む): 490003920

約数和(自身を除く): 279046940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 4810, 9620, 21929, 43858, 87716, 109645, 219290, 285077, 438580, 570154, 811373, 1140308, 1425385, 1622746, 2850770, 3245492, 4056865, 5701540, 8113730, 10547849, 16227460, 21095698, 42191396, 52739245, 105478490, 210956980]

約数ペア:

[(1, 210956980), (2, 105478490), (4, 52739245), (5, 42191396), (10, 21095698), (13, 16227460), (20, 10547849), (26, 8113730), (37, 5701540), (52, 4056865), (65, 3245492), (74, 2850770), (130, 1622746), (148, 1425385), (185, 1140308), (260, 811373), (370, 570154), (481, 438580), (740, 285077), (962, 219290), (1924, 109645), (2405, 87716), (4810, 43858), (9620, 21929)]