440674760

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:750

約数の個数: 64

約数和(自身を含む): 1006387200

約数和(自身を除く): 565712440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 223, 254, 389, 446, 508, 635, 778, 892, 1016, 1115, 1270, 1556, 1784, 1945, 2230, 2540, 3112, 3890, 4460, 5080, 7780, 8920, 15560, 28321, 49403, 56642, 86747, 98806, 113284, 141605, 173494, 197612, 226568, 247015, 283210, 346988, 395224, 433735, 494030, 566420, 693976, 867470, 988060, 1132840, 1734940, 1976120, 3469880, 11016869, 22033738, 44067476, 55084345, 88134952, 110168690, 220337380, 440674760]

約数ペア:

[(1, 440674760), (2, 220337380), (4, 110168690), (5, 88134952), (8, 55084345), (10, 44067476), (20, 22033738), (40, 11016869), (127, 3469880), (223, 1976120), (254, 1734940), (389, 1132840), (446, 988060), (508, 867470), (635, 693976), (778, 566420), (892, 494030), (1016, 433735), (1115, 395224), (1270, 346988), (1556, 283210), (1784, 247015), (1945, 226568), (2230, 197612), (2540, 173494), (3112, 141605), (3890, 113284), (4460, 98806), (5080, 86747), (7780, 56642), (8920, 49403), (15560, 28321)]