81390816

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21739}}^1$

素因数の和:21768

約数の個数: 72

約数和(自身を含む): 249270840

約数和(自身を除く): 167880024

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 21739, 43478, 65217, 86956, 130434, 173912, 195651, 260868, 282607, 347824, 391302, 521736, 565214, 695648, 782604, 847821, 1043472, 1130428, 1565208, 1695642, 2086944, 2260856, 2543463, 3130416, 3391284, 4521712, 5086926, 6260832, 6782568, 9043424, 10173852, 13565136, 20347704, 27130272, 40695408, 81390816]

約数ペア:

[(1, 81390816), (2, 40695408), (3, 27130272), (4, 20347704), (6, 13565136), (8, 10173852), (9, 9043424), (12, 6782568), (13, 6260832), (16, 5086926), (18, 4521712), (24, 3391284), (26, 3130416), (32, 2543463), (36, 2260856), (39, 2086944), (48, 1695642), (52, 1565208), (72, 1130428), (78, 1043472), (96, 847821), (104, 782604), (117, 695648), (144, 565214), (156, 521736), (208, 391302), (234, 347824), (288, 282607), (312, 260868), (416, 195651), (468, 173912), (624, 130434), (936, 86956), (1248, 65217), (1872, 43478), (3744, 21739)]