19662760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37813}}^1$

素因数の和:37837

約数の個数: 32

約数和(自身を含む): 47645640

約数和(自身を除く): 27982880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37813, 75626, 151252, 189065, 302504, 378130, 491569, 756260, 983138, 1512520, 1966276, 2457845, 3932552, 4915690, 9831380, 19662760]

約数ペア:

[(1, 19662760), (2, 9831380), (4, 4915690), (5, 3932552), (8, 2457845), (10, 1966276), (13, 1512520), (20, 983138), (26, 756260), (40, 491569), (52, 378130), (65, 302504), (104, 189065), (130, 151252), (260, 75626), (520, 37813)]