4957520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2043

約数の個数: 40

約数和(自身を含む): 11904000

約数和(自身を除く): 6946480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 1999, 2480, 3998, 7996, 9995, 15992, 19990, 31984, 39980, 61969, 79960, 123938, 159920, 247876, 309845, 495752, 619690, 991504, 1239380, 2478760, 4957520]

約数ペア:

[(1, 4957520), (2, 2478760), (4, 1239380), (5, 991504), (8, 619690), (10, 495752), (16, 309845), (20, 247876), (31, 159920), (40, 123938), (62, 79960), (80, 61969), (124, 39980), (155, 31984), (248, 19990), (310, 15992), (496, 9995), (620, 7996), (1240, 3998), (1999, 2480)]