20340464

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1783}}^1$

素因数の和:1845

約数の個数: 40

約数和(自身を含む): 42473472

約数和(自身を除く): 22133008

約数列:

[1, 2, 4, 8, 16, 23, 31, 46, 62, 92, 124, 184, 248, 368, 496, 713, 1426, 1783, 2852, 3566, 5704, 7132, 11408, 14264, 28528, 41009, 55273, 82018, 110546, 164036, 221092, 328072, 442184, 656144, 884368, 1271279, 2542558, 5085116, 10170232, 20340464]

約数ペア:

[(1, 20340464), (2, 10170232), (4, 5085116), (8, 2542558), (16, 1271279), (23, 884368), (31, 656144), (46, 442184), (62, 328072), (92, 221092), (124, 164036), (184, 110546), (248, 82018), (368, 55273), (496, 41009), (713, 28528), (1426, 14264), (1783, 11408), (2852, 7132), (3566, 5704)]