2920240

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{211}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 6861168

約数和(自身を除く): 3940928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 211, 346, 422, 692, 844, 865, 1055, 1384, 1688, 1730, 2110, 2768, 3376, 3460, 4220, 6920, 8440, 13840, 16880, 36503, 73006, 146012, 182515, 292024, 365030, 584048, 730060, 1460120, 2920240]

約数ペア:

[(1, 2920240), (2, 1460120), (4, 730060), (5, 584048), (8, 365030), (10, 292024), (16, 182515), (20, 146012), (40, 73006), (80, 36503), (173, 16880), (211, 13840), (346, 8440), (422, 6920), (692, 4220), (844, 3460), (865, 3376), (1055, 2768), (1384, 2110), (1688, 1730)]