158291217

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 278764200

約数和(自身を除く): 120472983

約数列:

[1, 3, 7, 9, 21, 37, 49, 63, 89, 109, 111, 147, 259, 267, 327, 333, 441, 623, 763, 777, 801, 981, 1813, 1869, 2289, 2331, 3293, 4033, 4361, 5341, 5439, 5607, 6867, 9701, 9879, 12099, 13083, 16023, 16317, 23051, 28231, 29103, 29637, 36297, 39249, 48069, 67907, 69153, 84693, 87309, 161357, 197617, 203721, 207459, 254079, 358937, 475349, 484071, 592851, 611163, 1076811, 1426047, 1452213, 1778553, 2512559, 3230433, 4278141, 7537677, 17587913, 22613031, 52763739, 158291217]

約数ペア:

[(1, 158291217), (3, 52763739), (7, 22613031), (9, 17587913), (21, 7537677), (37, 4278141), (49, 3230433), (63, 2512559), (89, 1778553), (109, 1452213), (111, 1426047), (147, 1076811), (259, 611163), (267, 592851), (327, 484071), (333, 475349), (441, 358937), (623, 254079), (763, 207459), (777, 203721), (801, 197617), (981, 161357), (1813, 87309), (1869, 84693), (2289, 69153), (2331, 67907), (3293, 48069), (4033, 39249), (4361, 36297), (5341, 29637), (5439, 29103), (5607, 28231), (6867, 23051), (9701, 16317), (9879, 16023), (12099, 13083)]