490482640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{360649}}^1$

素因数の和:360679

約数の個数: 40

約数和(自身を含む): 1207456200

約数和(自身を除く): 716973560

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 360649, 721298, 1442596, 1803245, 2885192, 3606490, 5770384, 6131033, 7212980, 12262066, 14425960, 24524132, 28851920, 30655165, 49048264, 61310330, 98096528, 122620660, 245241320, 490482640]

約数ペア:

[(1, 490482640), (2, 245241320), (4, 122620660), (5, 98096528), (8, 61310330), (10, 49048264), (16, 30655165), (17, 28851920), (20, 24524132), (34, 14425960), (40, 12262066), (68, 7212980), (80, 6131033), (85, 5770384), (136, 3606490), (170, 2885192), (272, 1803245), (340, 1442596), (680, 721298), (1360, 360649)]