289097320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{233143}}^1$

素因数の和:233185

約数の個数: 32

約数和(自身を含む): 671454720

約数和(自身を除く): 382357400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 233143, 466286, 932572, 1165715, 1865144, 2331430, 4662860, 7227433, 9325720, 14454866, 28909732, 36137165, 57819464, 72274330, 144548660, 289097320]

約数ペア:

[(1, 289097320), (2, 144548660), (4, 72274330), (5, 57819464), (8, 36137165), (10, 28909732), (20, 14454866), (31, 9325720), (40, 7227433), (62, 4662860), (124, 2331430), (155, 1865144), (248, 1165715), (310, 932572), (620, 466286), (1240, 233143)]