18311930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20123}}^1$

素因数の和:20150

約数の個数: 32

約数和(自身を含む): 40569984

約数和(自身を除く): 22258054

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 20123, 40246, 100615, 140861, 201230, 261599, 281722, 523198, 704305, 1307995, 1408610, 1831193, 2615990, 3662386, 9155965, 18311930]

約数ペア:

[(1, 18311930), (2, 9155965), (5, 3662386), (7, 2615990), (10, 1831193), (13, 1408610), (14, 1307995), (26, 704305), (35, 523198), (65, 281722), (70, 261599), (91, 201230), (130, 140861), (182, 100615), (455, 40246), (910, 20123)]