26286760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:131

約数の個数: 128

約数和(自身を含む): 68428800

約数和(自身を除く): 42142040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 31, 34, 40, 43, 58, 62, 68, 85, 86, 116, 124, 136, 145, 155, 170, 172, 215, 232, 248, 290, 310, 340, 344, 430, 493, 527, 580, 620, 680, 731, 860, 899, 986, 1054, 1160, 1240, 1247, 1333, 1462, 1720, 1798, 1972, 2108, 2465, 2494, 2635, 2666, 2924, 3596, 3655, 3944, 4216, 4495, 4930, 4988, 5270, 5332, 5848, 6235, 6665, 7192, 7310, 8990, 9860, 9976, 10540, 10664, 12470, 13330, 14620, 15283, 17980, 19720, 21080, 21199, 22661, 24940, 26660, 29240, 30566, 35960, 38657, 42398, 45322, 49880, 53320, 61132, 76415, 77314, 84796, 90644, 105995, 113305, 122264, 152830, 154628, 169592, 181288, 193285, 211990, 226610, 305660, 309256, 386570, 423980, 453220, 611320, 657169, 773140, 847960, 906440, 1314338, 1546280, 2628676, 3285845, 5257352, 6571690, 13143380, 26286760]

約数ペア:

[(1, 26286760), (2, 13143380), (4, 6571690), (5, 5257352), (8, 3285845), (10, 2628676), (17, 1546280), (20, 1314338), (29, 906440), (31, 847960), (34, 773140), (40, 657169), (43, 611320), (58, 453220), (62, 423980), (68, 386570), (85, 309256), (86, 305660), (116, 226610), (124, 211990), (136, 193285), (145, 181288), (155, 169592), (170, 154628), (172, 152830), (215, 122264), (232, 113305), (248, 105995), (290, 90644), (310, 84796), (340, 77314), (344, 76415), (430, 61132), (493, 53320), (527, 49880), (580, 45322), (620, 42398), (680, 38657), (731, 35960), (860, 30566), (899, 29240), (986, 26660), (1054, 24940), (1160, 22661), (1240, 21199), (1247, 21080), (1333, 19720), (1462, 17980), (1720, 15283), (1798, 14620), (1972, 13330), (2108, 12470), (2465, 10664), (2494, 10540), (2635, 9976), (2666, 9860), (2924, 8990), (3596, 7310), (3655, 7192), (3944, 6665), (4216, 6235), (4495, 5848), (4930, 5332), (4988, 5270)]