40744640

素因数分解:

$2^6\times 5^1\times {\mathrm{157}}^1\times {\mathrm{811}}^1$

素因数の和:985

約数の個数: 56

約数和(自身を含む): 97761552

約数和(自身を除く): 57016912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 157, 160, 314, 320, 628, 785, 811, 1256, 1570, 1622, 2512, 3140, 3244, 4055, 5024, 6280, 6488, 8110, 10048, 12560, 12976, 16220, 25120, 25952, 32440, 50240, 51904, 64880, 127327, 129760, 254654, 259520, 509308, 636635, 1018616, 1273270, 2037232, 2546540, 4074464, 5093080, 8148928, 10186160, 20372320, 40744640]

約数ペア:

[(1, 40744640), (2, 20372320), (4, 10186160), (5, 8148928), (8, 5093080), (10, 4074464), (16, 2546540), (20, 2037232), (32, 1273270), (40, 1018616), (64, 636635), (80, 509308), (157, 259520), (160, 254654), (314, 129760), (320, 127327), (628, 64880), (785, 51904), (811, 50240), (1256, 32440), (1570, 25952), (1622, 25120), (2512, 16220), (3140, 12976), (3244, 12560), (4055, 10048), (5024, 8110), (6280, 6488)]