81365508

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4423}}^1$

素因数の和:4513

約数の個数: 72

約数和(自身を含む): 238329728

約数和(自身を除く): 156964220

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 73, 84, 126, 146, 219, 252, 292, 438, 511, 657, 876, 1022, 1314, 1533, 2044, 2628, 3066, 4423, 4599, 6132, 8846, 9198, 13269, 17692, 18396, 26538, 30961, 39807, 53076, 61922, 79614, 92883, 123844, 159228, 185766, 278649, 322879, 371532, 557298, 645758, 968637, 1114596, 1291516, 1937274, 2260153, 2905911, 3874548, 4520306, 5811822, 6780459, 9040612, 11623644, 13560918, 20341377, 27121836, 40682754, 81365508]

約数ペア:

[(1, 81365508), (2, 40682754), (3, 27121836), (4, 20341377), (6, 13560918), (7, 11623644), (9, 9040612), (12, 6780459), (14, 5811822), (18, 4520306), (21, 3874548), (28, 2905911), (36, 2260153), (42, 1937274), (63, 1291516), (73, 1114596), (84, 968637), (126, 645758), (146, 557298), (219, 371532), (252, 322879), (292, 278649), (438, 185766), (511, 159228), (657, 123844), (876, 92883), (1022, 79614), (1314, 61922), (1533, 53076), (2044, 39807), (2628, 30961), (3066, 26538), (4423, 18396), (4599, 17692), (6132, 13269), (8846, 9198)]