28960720

素因数分解:

$2^4\times 5^1\times {\mathrm{563}}^1\times {\mathrm{643}}^1$

素因数の和:1219

約数の個数: 40

約数和(自身を含む): 67558176

約数和(自身を除く): 38597456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 563, 643, 1126, 1286, 2252, 2572, 2815, 3215, 4504, 5144, 5630, 6430, 9008, 10288, 11260, 12860, 22520, 25720, 45040, 51440, 362009, 724018, 1448036, 1810045, 2896072, 3620090, 5792144, 7240180, 14480360, 28960720]

約数ペア:

[(1, 28960720), (2, 14480360), (4, 7240180), (5, 5792144), (8, 3620090), (10, 2896072), (16, 1810045), (20, 1448036), (40, 724018), (80, 362009), (563, 51440), (643, 45040), (1126, 25720), (1286, 22520), (2252, 12860), (2572, 11260), (2815, 10288), (3215, 9008), (4504, 6430), (5144, 5630)]