20647330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8161}}^1$

素因数の和:8202

約数の個数: 32

約数和(自身を含む): 42311808

約数和(自身を除く): 21664478

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8161, 16322, 40805, 81610, 89771, 179542, 187703, 375406, 448855, 897710, 938515, 1877030, 2064733, 4129466, 10323665, 20647330]

約数ペア:

[(1, 20647330), (2, 10323665), (5, 4129466), (10, 2064733), (11, 1877030), (22, 938515), (23, 897710), (46, 448855), (55, 375406), (110, 187703), (115, 179542), (230, 89771), (253, 81610), (506, 40805), (1265, 16322), (2530, 8161)]