81802760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12101}}^1$

素因数の和:12138

約数の個数: 48

約数和(自身を含む): 199319940

約数和(自身を除く): 117517180

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 12101, 24202, 48404, 60505, 96808, 121010, 157313, 242020, 314626, 484040, 629252, 786565, 1258504, 1573130, 2045069, 3146260, 4090138, 6292520, 8180276, 10225345, 16360552, 20450690, 40901380, 81802760]

約数ペア:

[(1, 81802760), (2, 40901380), (4, 20450690), (5, 16360552), (8, 10225345), (10, 8180276), (13, 6292520), (20, 4090138), (26, 3146260), (40, 2045069), (52, 1573130), (65, 1258504), (104, 786565), (130, 629252), (169, 484040), (260, 314626), (338, 242020), (520, 157313), (676, 121010), (845, 96808), (1352, 60505), (1690, 48404), (3380, 24202), (6760, 12101)]