80820684

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2341}}^1$

素因数の和:2495

約数の個数: 72

約数和(自身を含む): 235286688

約数和(自身を除く): 154466004

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 137, 252, 274, 411, 548, 822, 959, 1233, 1644, 1918, 2341, 2466, 2877, 3836, 4682, 4932, 5754, 7023, 8631, 9364, 11508, 14046, 16387, 17262, 21069, 28092, 32774, 34524, 42138, 49161, 65548, 84276, 98322, 147483, 196644, 294966, 320717, 589932, 641434, 962151, 1282868, 1924302, 2245019, 2886453, 3848604, 4490038, 5772906, 6735057, 8980076, 11545812, 13470114, 20205171, 26940228, 40410342, 80820684]

約数ペア:

[(1, 80820684), (2, 40410342), (3, 26940228), (4, 20205171), (6, 13470114), (7, 11545812), (9, 8980076), (12, 6735057), (14, 5772906), (18, 4490038), (21, 3848604), (28, 2886453), (36, 2245019), (42, 1924302), (63, 1282868), (84, 962151), (126, 641434), (137, 589932), (252, 320717), (274, 294966), (411, 196644), (548, 147483), (822, 98322), (959, 84276), (1233, 65548), (1644, 49161), (1918, 42138), (2341, 34524), (2466, 32774), (2877, 28092), (3836, 21069), (4682, 17262), (4932, 16387), (5754, 14046), (7023, 11508), (8631, 9364)]