71881810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:248

約数の個数: 128

約数和(自身を含む): 178827264

約数和(自身を除く): 106945454

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 43, 55, 65, 70, 77, 86, 91, 110, 130, 143, 154, 167, 182, 215, 286, 301, 334, 385, 430, 455, 473, 559, 602, 715, 770, 835, 910, 946, 1001, 1118, 1169, 1430, 1505, 1670, 1837, 2002, 2171, 2338, 2365, 2795, 3010, 3311, 3674, 3913, 4342, 4730, 5005, 5590, 5845, 6149, 6622, 7181, 7826, 9185, 10010, 10855, 11690, 12298, 12859, 14362, 15197, 16555, 18370, 19565, 21710, 23881, 25718, 30394, 30745, 33110, 35905, 39130, 43043, 47762, 50267, 61490, 64295, 71810, 75985, 78991, 86086, 93353, 100534, 119405, 128590, 151970, 157982, 167167, 186706, 215215, 238810, 251335, 334334, 394955, 430430, 466765, 502670, 552937, 653471, 789910, 835835, 933530, 1026883, 1105874, 1306942, 1671670, 2053766, 2764685, 3267355, 5134415, 5529370, 6534710, 7188181, 10268830, 14376362, 35940905, 71881810]

約数ペア:

[(1, 71881810), (2, 35940905), (5, 14376362), (7, 10268830), (10, 7188181), (11, 6534710), (13, 5529370), (14, 5134415), (22, 3267355), (26, 2764685), (35, 2053766), (43, 1671670), (55, 1306942), (65, 1105874), (70, 1026883), (77, 933530), (86, 835835), (91, 789910), (110, 653471), (130, 552937), (143, 502670), (154, 466765), (167, 430430), (182, 394955), (215, 334334), (286, 251335), (301, 238810), (334, 215215), (385, 186706), (430, 167167), (455, 157982), (473, 151970), (559, 128590), (602, 119405), (715, 100534), (770, 93353), (835, 86086), (910, 78991), (946, 75985), (1001, 71810), (1118, 64295), (1169, 61490), (1430, 50267), (1505, 47762), (1670, 43043), (1837, 39130), (2002, 35905), (2171, 33110), (2338, 30745), (2365, 30394), (2795, 25718), (3010, 23881), (3311, 21710), (3674, 19565), (3913, 18370), (4342, 16555), (4730, 15197), (5005, 14362), (5590, 12859), (5845, 12298), (6149, 11690), (6622, 10855), (7181, 10010), (7826, 9185)]