17967920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11821}}^1$

素因数の和:11853

約数の個数: 40

約数和(自身を含む): 43977840

約数和(自身を除く): 26009920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 11821, 23642, 47284, 59105, 94568, 118210, 189136, 224599, 236420, 449198, 472840, 898396, 945680, 1122995, 1796792, 2245990, 3593584, 4491980, 8983960, 17967920]

約数ペア:

[(1, 17967920), (2, 8983960), (4, 4491980), (5, 3593584), (8, 2245990), (10, 1796792), (16, 1122995), (19, 945680), (20, 898396), (38, 472840), (40, 449198), (76, 236420), (80, 224599), (95, 189136), (152, 118210), (190, 94568), (304, 59105), (380, 47284), (760, 23642), (1520, 11821)]