990090890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1297}}^1\times {\mathrm{3319}}^1$

素因数の和:4646

約数の個数: 32

約数和(自身を含む): 1861643520

約数和(自身を除く): 871552630

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 1297, 2594, 3319, 6485, 6638, 12970, 16595, 29831, 33190, 59662, 76337, 149155, 152674, 298310, 381685, 763370, 4304743, 8609486, 21523715, 43047430, 99009089, 198018178, 495045445, 990090890]

約数ペア:

[(1, 990090890), (2, 495045445), (5, 198018178), (10, 99009089), (23, 43047430), (46, 21523715), (115, 8609486), (230, 4304743), (1297, 763370), (2594, 381685), (3319, 298310), (6485, 152674), (6638, 149155), (12970, 76337), (16595, 59662), (29831, 33190)]