17948440

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{797}}^1$

素因数の和:1371

約数の個数: 32

約数和(自身を含む): 40506480

約数和(自身を除く): 22558040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 797, 1126, 1594, 2252, 2815, 3188, 3985, 4504, 5630, 6376, 7970, 11260, 15940, 22520, 31880, 448711, 897422, 1794844, 2243555, 3589688, 4487110, 8974220, 17948440]

約数ペア:

[(1, 17948440), (2, 8974220), (4, 4487110), (5, 3589688), (8, 2243555), (10, 1794844), (20, 897422), (40, 448711), (563, 31880), (797, 22520), (1126, 15940), (1594, 11260), (2252, 7970), (2815, 6376), (3188, 5630), (3985, 4504)]