217996880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{143419}}^1$

素因数の和:143451

約数の個数: 40

約数和(自身を含む): 533522400

約数和(自身を除く): 315525520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 143419, 286838, 573676, 717095, 1147352, 1434190, 2294704, 2724961, 2868380, 5449922, 5736760, 10899844, 11473520, 13624805, 21799688, 27249610, 43599376, 54499220, 108998440, 217996880]

約数ペア:

[(1, 217996880), (2, 108998440), (4, 54499220), (5, 43599376), (8, 27249610), (10, 21799688), (16, 13624805), (19, 11473520), (20, 10899844), (38, 5736760), (40, 5449922), (76, 2868380), (80, 2724961), (95, 2294704), (152, 1434190), (190, 1147352), (304, 717095), (380, 573676), (760, 286838), (1520, 143419)]