68977480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:455

約数の個数: 128

約数和(自身を含む): 188697600

約数和(自身を除く): 119720120

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 88, 104, 110, 124, 130, 143, 155, 220, 248, 260, 286, 310, 341, 389, 403, 440, 520, 572, 620, 682, 715, 778, 806, 1144, 1240, 1364, 1430, 1556, 1612, 1705, 1945, 2015, 2728, 2860, 3112, 3224, 3410, 3890, 4030, 4279, 4433, 5057, 5720, 6820, 7780, 8060, 8558, 8866, 10114, 12059, 13640, 15560, 16120, 17116, 17732, 20228, 21395, 22165, 24118, 25285, 34232, 35464, 40456, 42790, 44330, 48236, 50570, 55627, 60295, 85580, 88660, 96472, 101140, 111254, 120590, 132649, 156767, 171160, 177320, 202280, 222508, 241180, 265298, 278135, 313534, 445016, 482360, 530596, 556270, 627068, 663245, 783835, 1061192, 1112540, 1254136, 1326490, 1567670, 1724437, 2225080, 2652980, 3135340, 3448874, 5305960, 6270680, 6897748, 8622185, 13795496, 17244370, 34488740, 68977480]

約数ペア:

[(1, 68977480), (2, 34488740), (4, 17244370), (5, 13795496), (8, 8622185), (10, 6897748), (11, 6270680), (13, 5305960), (20, 3448874), (22, 3135340), (26, 2652980), (31, 2225080), (40, 1724437), (44, 1567670), (52, 1326490), (55, 1254136), (62, 1112540), (65, 1061192), (88, 783835), (104, 663245), (110, 627068), (124, 556270), (130, 530596), (143, 482360), (155, 445016), (220, 313534), (248, 278135), (260, 265298), (286, 241180), (310, 222508), (341, 202280), (389, 177320), (403, 171160), (440, 156767), (520, 132649), (572, 120590), (620, 111254), (682, 101140), (715, 96472), (778, 88660), (806, 85580), (1144, 60295), (1240, 55627), (1364, 50570), (1430, 48236), (1556, 44330), (1612, 42790), (1705, 40456), (1945, 35464), (2015, 34232), (2728, 25285), (2860, 24118), (3112, 22165), (3224, 21395), (3410, 20228), (3890, 17732), (4030, 17116), (4279, 16120), (4433, 15560), (5057, 13640), (5720, 12059), (6820, 10114), (7780, 8866), (8060, 8558)]