8980360

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{647}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 20295360

約数和(自身を除く): 11315000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 647, 694, 1294, 1388, 1735, 2588, 2776, 3235, 3470, 5176, 6470, 6940, 12940, 13880, 25880, 224509, 449018, 898036, 1122545, 1796072, 2245090, 4490180, 8980360]

約数ペア:

[(1, 8980360), (2, 4490180), (4, 2245090), (5, 1796072), (8, 1122545), (10, 898036), (20, 449018), (40, 224509), (347, 25880), (647, 13880), (694, 12940), (1294, 6940), (1388, 6470), (1735, 5176), (2588, 3470), (2776, 3235)]