20909040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87121}}^1$

素因数の和:87137

約数の個数: 40

約数和(自身を含む): 64818768

約数和(自身を除く): 43909728

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87121, 174242, 261363, 348484, 435605, 522726, 696968, 871210, 1045452, 1306815, 1393936, 1742420, 2090904, 2613630, 3484840, 4181808, 5227260, 6969680, 10454520, 20909040]

約数ペア:

[(1, 20909040), (2, 10454520), (3, 6969680), (4, 5227260), (5, 4181808), (6, 3484840), (8, 2613630), (10, 2090904), (12, 1742420), (15, 1393936), (16, 1306815), (20, 1045452), (24, 871210), (30, 696968), (40, 522726), (48, 435605), (60, 348484), (80, 261363), (120, 174242), (240, 87121)]