17988440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23669}}^1$

素因数の和:23699

約数の個数: 32

約数和(自身を含む): 42606000

約数和(自身を除く): 24617560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 23669, 47338, 94676, 118345, 189352, 236690, 449711, 473380, 899422, 946760, 1798844, 2248555, 3597688, 4497110, 8994220, 17988440]

約数ペア:

[(1, 17988440), (2, 8994220), (4, 4497110), (5, 3597688), (8, 2248555), (10, 1798844), (19, 946760), (20, 899422), (38, 473380), (40, 449711), (76, 236690), (95, 189352), (152, 118345), (190, 94676), (380, 47338), (760, 23669)]