210850280

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{443}}^1$

素因数の和:690

約数の個数: 64

約数和(自身を含む): 484954560

約数和(自身を除く): 274104280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 163, 292, 326, 365, 443, 584, 652, 730, 815, 886, 1304, 1460, 1630, 1772, 2215, 2920, 3260, 3544, 4430, 6520, 8860, 11899, 17720, 23798, 32339, 47596, 59495, 64678, 72209, 95192, 118990, 129356, 144418, 161695, 237980, 258712, 288836, 323390, 361045, 475960, 577672, 646780, 722090, 1293560, 1444180, 2888360, 5271257, 10542514, 21085028, 26356285, 42170056, 52712570, 105425140, 210850280]

約数ペア:

[(1, 210850280), (2, 105425140), (4, 52712570), (5, 42170056), (8, 26356285), (10, 21085028), (20, 10542514), (40, 5271257), (73, 2888360), (146, 1444180), (163, 1293560), (292, 722090), (326, 646780), (365, 577672), (443, 475960), (584, 361045), (652, 323390), (730, 288836), (815, 258712), (886, 237980), (1304, 161695), (1460, 144418), (1630, 129356), (1772, 118990), (2215, 95192), (2920, 72209), (3260, 64678), (3544, 59495), (4430, 47596), (6520, 32339), (8860, 23798), (11899, 17720)]