2261921980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{6211}}^1$

素因数の和:6490

約数の個数: 48

約数和(自身を含む): 4821505920

約数和(自身を除く): 2559583940

約数列:

[1, 2, 4, 5, 10, 20, 131, 139, 262, 278, 524, 556, 655, 695, 1310, 1390, 2620, 2780, 6211, 12422, 18209, 24844, 31055, 36418, 62110, 72836, 91045, 124220, 182090, 364180, 813641, 863329, 1627282, 1726658, 3254564, 3453316, 4068205, 4316645, 8136410, 8633290, 16272820, 17266580, 113096099, 226192198, 452384396, 565480495, 1130960990, 2261921980]

約数ペア:

[(1, 2261921980), (2, 1130960990), (4, 565480495), (5, 452384396), (10, 226192198), (20, 113096099), (131, 17266580), (139, 16272820), (262, 8633290), (278, 8136410), (524, 4316645), (556, 4068205), (655, 3453316), (695, 3254564), (1310, 1726658), (1390, 1627282), (2620, 863329), (2780, 813641), (6211, 364180), (12422, 182090), (18209, 124220), (24844, 91045), (31055, 72836), (36418, 62110)]