81395116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 170510256

約数和(自身を除く): 89115140

約数列:

[1, 2, 4, 11, 17, 22, 34, 37, 44, 68, 74, 148, 173, 187, 289, 346, 374, 407, 578, 629, 692, 748, 814, 1156, 1258, 1628, 1903, 2516, 2941, 3179, 3806, 5882, 6358, 6401, 6919, 7612, 10693, 11764, 12716, 12802, 13838, 21386, 25604, 27676, 32351, 42772, 49997, 64702, 70411, 99994, 108817, 117623, 129404, 140822, 199988, 217634, 235246, 281644, 435268, 470492, 549967, 1099934, 1196987, 1849889, 2199868, 2393974, 3699778, 4787948, 7399556, 20348779, 40697558, 81395116]

約数ペア:

[(1, 81395116), (2, 40697558), (4, 20348779), (11, 7399556), (17, 4787948), (22, 3699778), (34, 2393974), (37, 2199868), (44, 1849889), (68, 1196987), (74, 1099934), (148, 549967), (173, 470492), (187, 435268), (289, 281644), (346, 235246), (374, 217634), (407, 199988), (578, 140822), (629, 129404), (692, 117623), (748, 108817), (814, 99994), (1156, 70411), (1258, 64702), (1628, 49997), (1903, 42772), (2516, 32351), (2941, 27676), (3179, 25604), (3806, 21386), (5882, 13838), (6358, 12802), (6401, 12716), (6919, 11764), (7612, 10693)]