997804940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1571}}^1\times {\mathrm{2887}}^1$

素因数の和:4478

約数の個数: 48

約数和(自身を含む): 2288127744

約数和(自身を除く): 1290322804

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1571, 2887, 3142, 5774, 6284, 7855, 11548, 14435, 15710, 17281, 28870, 31420, 31757, 34562, 57740, 63514, 69124, 86405, 127028, 158785, 172810, 317570, 345620, 635140, 4535477, 9070954, 18141908, 22677385, 45354770, 49890247, 90709540, 99780494, 199560988, 249451235, 498902470, 997804940]

約数ペア:

[(1, 997804940), (2, 498902470), (4, 249451235), (5, 199560988), (10, 99780494), (11, 90709540), (20, 49890247), (22, 45354770), (44, 22677385), (55, 18141908), (110, 9070954), (220, 4535477), (1571, 635140), (2887, 345620), (3142, 317570), (5774, 172810), (6284, 158785), (7855, 127028), (11548, 86405), (14435, 69124), (15710, 63514), (17281, 57740), (28870, 34562), (31420, 31757)]