638480

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:383

約数の個数: 40

約数和(自身を含む): 1553472

約数和(自身を除く): 914992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 347, 368, 460, 694, 920, 1388, 1735, 1840, 2776, 3470, 5552, 6940, 7981, 13880, 15962, 27760, 31924, 39905, 63848, 79810, 127696, 159620, 319240, 638480]

約数ペア:

[(1, 638480), (2, 319240), (4, 159620), (5, 127696), (8, 79810), (10, 63848), (16, 39905), (20, 31924), (23, 27760), (40, 15962), (46, 13880), (80, 7981), (92, 6940), (115, 5552), (184, 3470), (230, 2776), (347, 1840), (368, 1735), (460, 1388), (694, 920)]