20678508

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^2\times {\mathrm{683}}^1$

素因数の和:751

約数の個数: 54

約数和(自身を含む): 54214524

約数和(自身を除く): 33536016

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 683, 841, 1044, 1366, 1682, 2049, 2523, 2732, 3364, 4098, 5046, 6147, 7569, 8196, 10092, 12294, 15138, 19807, 24588, 30276, 39614, 59421, 79228, 118842, 178263, 237684, 356526, 574403, 713052, 1148806, 1723209, 2297612, 3446418, 5169627, 6892836, 10339254, 20678508]

約数ペア:

[(1, 20678508), (2, 10339254), (3, 6892836), (4, 5169627), (6, 3446418), (9, 2297612), (12, 1723209), (18, 1148806), (29, 713052), (36, 574403), (58, 356526), (87, 237684), (116, 178263), (174, 118842), (261, 79228), (348, 59421), (522, 39614), (683, 30276), (841, 24588), (1044, 19807), (1366, 15138), (1682, 12294), (2049, 10092), (2523, 8196), (2732, 7569), (3364, 6147), (4098, 5046)]