17960720

素因数分解:

$2^4\times 5^1\times {\mathrm{347}}^1\times {\mathrm{647}}^1$

素因数の和:1007

約数の個数: 40

約数和(自身を含む): 41943744

約数和(自身を除く): 23983024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 347, 647, 694, 1294, 1388, 1735, 2588, 2776, 3235, 3470, 5176, 5552, 6470, 6940, 10352, 12940, 13880, 25880, 27760, 51760, 224509, 449018, 898036, 1122545, 1796072, 2245090, 3592144, 4490180, 8980360, 17960720]

約数ペア:

[(1, 17960720), (2, 8980360), (4, 4490180), (5, 3592144), (8, 2245090), (10, 1796072), (16, 1122545), (20, 898036), (40, 449018), (80, 224509), (347, 51760), (647, 27760), (694, 25880), (1294, 13880), (1388, 12940), (1735, 10352), (2588, 6940), (2776, 6470), (3235, 5552), (3470, 5176)]