80603320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 221760000

約数和(自身を除く): 141156680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 109, 133, 139, 140, 152, 190, 218, 266, 278, 280, 380, 436, 532, 545, 556, 665, 695, 760, 763, 872, 973, 1064, 1090, 1112, 1330, 1390, 1526, 1946, 2071, 2180, 2641, 2660, 2780, 3052, 3815, 3892, 4142, 4360, 4865, 5282, 5320, 5560, 6104, 7630, 7784, 8284, 9730, 10355, 10564, 13205, 14497, 15151, 15260, 16568, 18487, 19460, 20710, 21128, 26410, 28994, 30302, 30520, 36974, 38920, 41420, 52820, 57988, 60604, 72485, 73948, 75755, 82840, 92435, 105640, 106057, 115976, 121208, 144970, 147896, 151510, 184870, 212114, 287869, 289940, 303020, 369740, 424228, 530285, 575738, 579880, 606040, 739480, 848456, 1060570, 1151476, 1439345, 2015083, 2121140, 2302952, 2878690, 4030166, 4242280, 5757380, 8060332, 10075415, 11514760, 16120664, 20150830, 40301660, 80603320]

約数ペア:

[(1, 80603320), (2, 40301660), (4, 20150830), (5, 16120664), (7, 11514760), (8, 10075415), (10, 8060332), (14, 5757380), (19, 4242280), (20, 4030166), (28, 2878690), (35, 2302952), (38, 2121140), (40, 2015083), (56, 1439345), (70, 1151476), (76, 1060570), (95, 848456), (109, 739480), (133, 606040), (139, 579880), (140, 575738), (152, 530285), (190, 424228), (218, 369740), (266, 303020), (278, 289940), (280, 287869), (380, 212114), (436, 184870), (532, 151510), (545, 147896), (556, 144970), (665, 121208), (695, 115976), (760, 106057), (763, 105640), (872, 92435), (973, 82840), (1064, 75755), (1090, 73948), (1112, 72485), (1330, 60604), (1390, 57988), (1526, 52820), (1946, 41420), (2071, 38920), (2180, 36974), (2641, 30520), (2660, 30302), (2780, 28994), (3052, 26410), (3815, 21128), (3892, 20710), (4142, 19460), (4360, 18487), (4865, 16568), (5282, 15260), (5320, 15151), (5560, 14497), (6104, 13205), (7630, 10564), (7784, 10355), (8284, 9730)]