81969384

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1229}}^1$

素因数の和:1642

約数の個数: 64

約数和(自身を含む): 234979200

約数和(自身を除く): 153009816

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 397, 794, 1191, 1229, 1588, 2382, 2458, 2779, 3176, 3687, 4764, 4916, 5558, 7374, 8337, 8603, 9528, 9832, 11116, 14748, 16674, 17206, 22232, 25809, 29496, 33348, 34412, 51618, 66696, 68824, 103236, 206472, 487913, 975826, 1463739, 1951652, 2927478, 3415391, 3903304, 5854956, 6830782, 10246173, 11709912, 13661564, 20492346, 27323128, 40984692, 81969384]

約数ペア:

[(1, 81969384), (2, 40984692), (3, 27323128), (4, 20492346), (6, 13661564), (7, 11709912), (8, 10246173), (12, 6830782), (14, 5854956), (21, 3903304), (24, 3415391), (28, 2927478), (42, 1951652), (56, 1463739), (84, 975826), (168, 487913), (397, 206472), (794, 103236), (1191, 68824), (1229, 66696), (1588, 51618), (2382, 34412), (2458, 33348), (2779, 29496), (3176, 25809), (3687, 22232), (4764, 17206), (4916, 16674), (5558, 14748), (7374, 11116), (8337, 9832), (8603, 9528)]