81374678

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^4\times {\mathrm{397}}^1$

素因数の和:450

約数の個数: 40

約数和(自身を含む): 153834960

約数和(自身を除く): 72460282

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 397, 794, 847, 1331, 1694, 2662, 2779, 4367, 5558, 8734, 9317, 14641, 18634, 29282, 30569, 48037, 61138, 96074, 102487, 204974, 336259, 528407, 672518, 1056814, 3698849, 5812477, 7397698, 11624954, 40687339, 81374678]

約数ペア:

[(1, 81374678), (2, 40687339), (7, 11624954), (11, 7397698), (14, 5812477), (22, 3698849), (77, 1056814), (121, 672518), (154, 528407), (242, 336259), (397, 204974), (794, 102487), (847, 96074), (1331, 61138), (1694, 48037), (2662, 30569), (2779, 29282), (4367, 18634), (5558, 14641), (8734, 9317)]