20045608

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{631}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 43342560

約数和(自身を除く): 23296952

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 361, 418, 631, 722, 836, 1262, 1444, 1672, 2524, 2888, 3971, 5048, 6941, 7942, 11989, 13882, 15884, 23978, 27764, 31768, 47956, 55528, 95912, 131879, 227791, 263758, 455582, 527516, 911164, 1055032, 1822328, 2505701, 5011402, 10022804, 20045608]

約数ペア:

[(1, 20045608), (2, 10022804), (4, 5011402), (8, 2505701), (11, 1822328), (19, 1055032), (22, 911164), (38, 527516), (44, 455582), (76, 263758), (88, 227791), (152, 131879), (209, 95912), (361, 55528), (418, 47956), (631, 31768), (722, 27764), (836, 23978), (1262, 15884), (1444, 13882), (1672, 11989), (2524, 7942), (2888, 6941), (3971, 5048)]