91420840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{326503}}^1$

素因数の和:326521

約数の個数: 32

約数和(自身を含む): 235082880

約数和(自身を除く): 143662040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 326503, 653006, 1306012, 1632515, 2285521, 2612024, 3265030, 4571042, 6530060, 9142084, 11427605, 13060120, 18284168, 22855210, 45710420, 91420840]

約数ペア:

[(1, 91420840), (2, 45710420), (4, 22855210), (5, 18284168), (7, 13060120), (8, 11427605), (10, 9142084), (14, 6530060), (20, 4571042), (28, 3265030), (35, 2612024), (40, 2285521), (56, 1632515), (70, 1306012), (140, 653006), (280, 326503)]