81421410

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{387721}}^1$

素因数の和:387738

約数の個数: 32

約数和(自身を含む): 223327872

約数和(自身を除く): 141906462

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 387721, 775442, 1163163, 1938605, 2326326, 2714047, 3877210, 5428094, 5815815, 8142141, 11631630, 13570235, 16284282, 27140470, 40710705, 81421410]

約数ペア:

[(1, 81421410), (2, 40710705), (3, 27140470), (5, 16284282), (6, 13570235), (7, 11631630), (10, 8142141), (14, 5815815), (15, 5428094), (21, 3877210), (30, 2714047), (35, 2326326), (42, 1938605), (70, 1163163), (105, 775442), (210, 387721)]