990473445

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{20399}}^1$

素因数の和:20506

約数の個数: 48

約数和(自身を含む): 1871251200

約数和(自身を除く): 880777755

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 83, 117, 195, 249, 415, 585, 747, 1079, 1245, 3237, 3735, 5395, 9711, 16185, 20399, 48555, 61197, 101995, 183591, 265187, 305985, 795561, 917955, 1325935, 1693117, 2386683, 3977805, 5079351, 8465585, 11933415, 15238053, 22010521, 25396755, 66031563, 76190265, 110052605, 198094689, 330157815, 990473445]

約数ペア:

[(1, 990473445), (3, 330157815), (5, 198094689), (9, 110052605), (13, 76190265), (15, 66031563), (39, 25396755), (45, 22010521), (65, 15238053), (83, 11933415), (117, 8465585), (195, 5079351), (249, 3977805), (415, 2386683), (585, 1693117), (747, 1325935), (1079, 917955), (1245, 795561), (3237, 305985), (3735, 265187), (5395, 183591), (9711, 101995), (16185, 61197), (20399, 48555)]