220867280

素因数分解:

$2^4\times 5^1\times {\mathrm{953}}^1\times {\mathrm{2897}}^1$

素因数の和:3863

約数の個数: 40

約数和(自身を含む): 514232712

約数和(自身を除く): 293365432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 953, 1906, 2897, 3812, 4765, 5794, 7624, 9530, 11588, 14485, 15248, 19060, 23176, 28970, 38120, 46352, 57940, 76240, 115880, 231760, 2760841, 5521682, 11043364, 13804205, 22086728, 27608410, 44173456, 55216820, 110433640, 220867280]

約数ペア:

[(1, 220867280), (2, 110433640), (4, 55216820), (5, 44173456), (8, 27608410), (10, 22086728), (16, 13804205), (20, 11043364), (40, 5521682), (80, 2760841), (953, 231760), (1906, 115880), (2897, 76240), (3812, 57940), (4765, 46352), (5794, 38120), (7624, 28970), (9530, 23176), (11588, 19060), (14485, 15248)]