20091760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19319}}^1$

素因数の和:19345

約数の個数: 40

約数和(自身を含む): 50309280

約数和(自身を除く): 30217520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19319, 38638, 77276, 96595, 154552, 193190, 251147, 309104, 386380, 502294, 772760, 1004588, 1255735, 1545520, 2009176, 2511470, 4018352, 5022940, 10045880, 20091760]

約数ペア:

[(1, 20091760), (2, 10045880), (4, 5022940), (5, 4018352), (8, 2511470), (10, 2009176), (13, 1545520), (16, 1255735), (20, 1004588), (26, 772760), (40, 502294), (52, 386380), (65, 309104), (80, 251147), (104, 193190), (130, 154552), (208, 96595), (260, 77276), (520, 38638), (1040, 19319)]