40939280

素因数分解:

$2^4\times 5^1\times {\mathrm{631}}^1\times {\mathrm{811}}^1$

素因数の和:1455

約数の個数: 40

約数和(自身を含む): 95452224

約数和(自身を除く): 54512944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 631, 811, 1262, 1622, 2524, 3155, 3244, 4055, 5048, 6310, 6488, 8110, 10096, 12620, 12976, 16220, 25240, 32440, 50480, 64880, 511741, 1023482, 2046964, 2558705, 4093928, 5117410, 8187856, 10234820, 20469640, 40939280]

約数ペア:

[(1, 40939280), (2, 20469640), (4, 10234820), (5, 8187856), (8, 5117410), (10, 4093928), (16, 2558705), (20, 2046964), (40, 1023482), (80, 511741), (631, 64880), (811, 50480), (1262, 32440), (1622, 25240), (2524, 16220), (3155, 12976), (3244, 12620), (4055, 10096), (5048, 8110), (6310, 6488)]