221444470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{54949}}^1$

素因数の和:55000

約数の個数: 32

約数和(自身を含む): 443116800

約数和(自身を除く): 221672330

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 54949, 109898, 274745, 549490, 714337, 1428674, 1703419, 3406838, 3571685, 7143370, 8517095, 17034190, 22144447, 44288894, 110722235, 221444470]

約数ペア:

[(1, 221444470), (2, 110722235), (5, 44288894), (10, 22144447), (13, 17034190), (26, 8517095), (31, 7143370), (62, 3571685), (65, 3406838), (130, 1703419), (155, 1428674), (310, 714337), (403, 549490), (806, 274745), (2015, 109898), (4030, 54949)]