89816680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:794

約数の個数: 64

約数和(自身を含む): 209721600

約数和(自身を除く): 119904920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 79, 86, 158, 172, 215, 316, 344, 395, 430, 632, 661, 790, 860, 1322, 1580, 1720, 2644, 3160, 3305, 3397, 5288, 6610, 6794, 13220, 13588, 16985, 26440, 27176, 28423, 33970, 52219, 56846, 67940, 104438, 113692, 135880, 142115, 208876, 227384, 261095, 284230, 417752, 522190, 568460, 1044380, 1136920, 2088760, 2245417, 4490834, 8981668, 11227085, 17963336, 22454170, 44908340, 89816680]

約数ペア:

[(1, 89816680), (2, 44908340), (4, 22454170), (5, 17963336), (8, 11227085), (10, 8981668), (20, 4490834), (40, 2245417), (43, 2088760), (79, 1136920), (86, 1044380), (158, 568460), (172, 522190), (215, 417752), (316, 284230), (344, 261095), (395, 227384), (430, 208876), (632, 142115), (661, 135880), (790, 113692), (860, 104438), (1322, 67940), (1580, 56846), (1720, 52219), (2644, 33970), (3160, 28423), (3305, 27176), (3397, 26440), (5288, 16985), (6610, 13588), (6794, 13220)]