138818120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{1381}}^1$

素因数の和:1758

約数の個数: 64

約数和(自身を含む): 358214400

約数和(自身を除く): 219396280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 359, 718, 1381, 1436, 1795, 2513, 2762, 2872, 3590, 5026, 5524, 6905, 7180, 9667, 10052, 11048, 12565, 13810, 14360, 19334, 20104, 25130, 27620, 38668, 48335, 50260, 55240, 77336, 96670, 100520, 193340, 386680, 495779, 991558, 1983116, 2478895, 3470453, 3966232, 4957790, 6940906, 9915580, 13881812, 17352265, 19831160, 27763624, 34704530, 69409060, 138818120]

約数ペア:

[(1, 138818120), (2, 69409060), (4, 34704530), (5, 27763624), (7, 19831160), (8, 17352265), (10, 13881812), (14, 9915580), (20, 6940906), (28, 4957790), (35, 3966232), (40, 3470453), (56, 2478895), (70, 1983116), (140, 991558), (280, 495779), (359, 386680), (718, 193340), (1381, 100520), (1436, 96670), (1795, 77336), (2513, 55240), (2762, 50260), (2872, 48335), (3590, 38668), (5026, 27620), (5524, 25130), (6905, 20104), (7180, 19334), (9667, 14360), (10052, 13810), (11048, 12565)]