81641640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{680347}}^1$

素因数の和:680361

約数の個数: 32

約数和(自身を含む): 244925280

約数和(自身を除く): 163283640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 680347, 1360694, 2041041, 2721388, 3401735, 4082082, 5442776, 6803470, 8164164, 10205205, 13606940, 16328328, 20410410, 27213880, 40820820, 81641640]

約数ペア:

[(1, 81641640), (2, 40820820), (3, 27213880), (4, 20410410), (5, 16328328), (6, 13606940), (8, 10205205), (10, 8164164), (12, 6803470), (15, 5442776), (20, 4082082), (24, 3401735), (30, 2721388), (40, 2041041), (60, 1360694), (120, 680347)]