40907240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{389}}^1$

素因数の和:650

約数の個数: 64

約数和(自身を含む): 101088000

約数和(自身を除く): 60180760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 239, 389, 440, 478, 778, 956, 1195, 1556, 1912, 1945, 2390, 2629, 3112, 3890, 4279, 4780, 5258, 7780, 8558, 9560, 10516, 13145, 15560, 17116, 21032, 21395, 26290, 34232, 42790, 52580, 85580, 92971, 105160, 171160, 185942, 371884, 464855, 743768, 929710, 1022681, 1859420, 2045362, 3718840, 4090724, 5113405, 8181448, 10226810, 20453620, 40907240]

約数ペア:

[(1, 40907240), (2, 20453620), (4, 10226810), (5, 8181448), (8, 5113405), (10, 4090724), (11, 3718840), (20, 2045362), (22, 1859420), (40, 1022681), (44, 929710), (55, 743768), (88, 464855), (110, 371884), (220, 185942), (239, 171160), (389, 105160), (440, 92971), (478, 85580), (778, 52580), (956, 42790), (1195, 34232), (1556, 26290), (1912, 21395), (1945, 21032), (2390, 17116), (2629, 15560), (3112, 13145), (3890, 10516), (4279, 9560), (4780, 8558), (5258, 7780)]