989898225

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{1901}}^1$

素因数の和:2098

約数の個数: 48

約数和(自身を含む): 1681124544

約数和(自身を除く): 691226319

約数列:

[1, 3, 5, 15, 25, 53, 75, 131, 159, 265, 393, 655, 795, 1325, 1901, 1965, 3275, 3975, 5703, 6943, 9505, 9825, 20829, 28515, 34715, 47525, 100753, 104145, 142575, 173575, 249031, 302259, 503765, 520725, 747093, 1245155, 1511295, 2518825, 3735465, 6225775, 7556475, 13198643, 18677325, 39595929, 65993215, 197979645, 329966075, 989898225]

約数ペア:

[(1, 989898225), (3, 329966075), (5, 197979645), (15, 65993215), (25, 39595929), (53, 18677325), (75, 13198643), (131, 7556475), (159, 6225775), (265, 3735465), (393, 2518825), (655, 1511295), (795, 1245155), (1325, 747093), (1901, 520725), (1965, 503765), (3275, 302259), (3975, 249031), (5703, 173575), (6943, 142575), (9505, 104145), (9825, 100753), (20829, 47525), (28515, 34715)]