204925960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1\times {\mathrm{421}}^1$

素因数の和:758

約数の個数: 64

約数和(自身を含む): 474598080

約数和(自身を除く): 269672120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 283, 344, 421, 430, 566, 842, 860, 1132, 1415, 1684, 1720, 2105, 2264, 2830, 3368, 4210, 5660, 8420, 11320, 12169, 16840, 18103, 24338, 36206, 48676, 60845, 72412, 90515, 97352, 119143, 121690, 144824, 181030, 238286, 243380, 362060, 476572, 486760, 595715, 724120, 953144, 1191430, 2382860, 4765720, 5123149, 10246298, 20492596, 25615745, 40985192, 51231490, 102462980, 204925960]

約数ペア:

[(1, 204925960), (2, 102462980), (4, 51231490), (5, 40985192), (8, 25615745), (10, 20492596), (20, 10246298), (40, 5123149), (43, 4765720), (86, 2382860), (172, 1191430), (215, 953144), (283, 724120), (344, 595715), (421, 486760), (430, 476572), (566, 362060), (842, 243380), (860, 238286), (1132, 181030), (1415, 144824), (1684, 121690), (1720, 119143), (2105, 97352), (2264, 90515), (2830, 72412), (3368, 60845), (4210, 48676), (5660, 36206), (8420, 24338), (11320, 18103), (12169, 16840)]