81506556

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{25439}}^1$

素因数の和:25538

約数の個数: 36

約数和(自身を含む): 208353600

約数和(自身を除く): 126847044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 178, 267, 356, 534, 801, 1068, 1602, 3204, 25439, 50878, 76317, 101756, 152634, 228951, 305268, 457902, 915804, 2264071, 4528142, 6792213, 9056284, 13584426, 20376639, 27168852, 40753278, 81506556]

約数ペア:

[(1, 81506556), (2, 40753278), (3, 27168852), (4, 20376639), (6, 13584426), (9, 9056284), (12, 6792213), (18, 4528142), (36, 2264071), (89, 915804), (178, 457902), (267, 305268), (356, 228951), (534, 152634), (801, 101756), (1068, 76317), (1602, 50878), (3204, 25439)]