80321440

素因数分解:

$2^5\times 5^1\times {\mathrm{619}}^1\times {\mathrm{811}}^1$

素因数の和:1445

約数の個数: 48

約数和(自身を含む): 190300320

約数和(自身を除く): 109978880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 619, 811, 1238, 1622, 2476, 3095, 3244, 4055, 4952, 6190, 6488, 8110, 9904, 12380, 12976, 16220, 19808, 24760, 25952, 32440, 49520, 64880, 99040, 129760, 502009, 1004018, 2008036, 2510045, 4016072, 5020090, 8032144, 10040180, 16064288, 20080360, 40160720, 80321440]

約数ペア:

[(1, 80321440), (2, 40160720), (4, 20080360), (5, 16064288), (8, 10040180), (10, 8032144), (16, 5020090), (20, 4016072), (32, 2510045), (40, 2008036), (80, 1004018), (160, 502009), (619, 129760), (811, 99040), (1238, 64880), (1622, 49520), (2476, 32440), (3095, 25952), (3244, 24760), (4055, 19808), (4952, 16220), (6190, 12976), (6488, 12380), (8110, 9904)]