20597772

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 72

約数和(自身を含む): 53946256

約数和(自身を除く): 33348484

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 29, 39, 52, 58, 78, 87, 116, 156, 157, 174, 314, 348, 377, 471, 628, 754, 841, 942, 1131, 1508, 1682, 1884, 2041, 2262, 2523, 3364, 4082, 4524, 4553, 5046, 6123, 8164, 9106, 10092, 10933, 12246, 13659, 18212, 21866, 24492, 27318, 32799, 43732, 54636, 59189, 65598, 118378, 131196, 132037, 177567, 236756, 264074, 355134, 396111, 528148, 710268, 792222, 1584444, 1716481, 3432962, 5149443, 6865924, 10298886, 20597772]

約数ペア:

[(1, 20597772), (2, 10298886), (3, 6865924), (4, 5149443), (6, 3432962), (12, 1716481), (13, 1584444), (26, 792222), (29, 710268), (39, 528148), (52, 396111), (58, 355134), (78, 264074), (87, 236756), (116, 177567), (156, 132037), (157, 131196), (174, 118378), (314, 65598), (348, 59189), (377, 54636), (471, 43732), (628, 32799), (754, 27318), (841, 24492), (942, 21866), (1131, 18212), (1508, 13659), (1682, 12246), (1884, 10933), (2041, 10092), (2262, 9106), (2523, 8164), (3364, 6123), (4082, 5046), (4524, 4553)]