40196920

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3821}}^1$

素因数の和:4095

約数の個数: 32

約数和(自身を含む): 90810720

約数和(自身を除く): 50613800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 3821, 5260, 7642, 10520, 15284, 19105, 30568, 38210, 76420, 152840, 1004923, 2009846, 4019692, 5024615, 8039384, 10049230, 20098460, 40196920]

約数ペア:

[(1, 40196920), (2, 20098460), (4, 10049230), (5, 8039384), (8, 5024615), (10, 4019692), (20, 2009846), (40, 1004923), (263, 152840), (526, 76420), (1052, 38210), (1315, 30568), (2104, 19105), (2630, 15284), (3821, 10520), (5260, 7642)]