138691920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{19927}}^1$

素因数の和:19972

約数の個数: 80

約数和(自身を含む): 444792960

約数和(自身を除く): 306101040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 48, 58, 60, 80, 87, 116, 120, 145, 174, 232, 240, 290, 348, 435, 464, 580, 696, 870, 1160, 1392, 1740, 2320, 3480, 6960, 19927, 39854, 59781, 79708, 99635, 119562, 159416, 199270, 239124, 298905, 318832, 398540, 478248, 577883, 597810, 797080, 956496, 1155766, 1195620, 1594160, 1733649, 2311532, 2391240, 2889415, 3467298, 4623064, 4782480, 5778830, 6934596, 8668245, 9246128, 11557660, 13869192, 17336490, 23115320, 27738384, 34672980, 46230640, 69345960, 138691920]

約数ペア:

[(1, 138691920), (2, 69345960), (3, 46230640), (4, 34672980), (5, 27738384), (6, 23115320), (8, 17336490), (10, 13869192), (12, 11557660), (15, 9246128), (16, 8668245), (20, 6934596), (24, 5778830), (29, 4782480), (30, 4623064), (40, 3467298), (48, 2889415), (58, 2391240), (60, 2311532), (80, 1733649), (87, 1594160), (116, 1195620), (120, 1155766), (145, 956496), (174, 797080), (232, 597810), (240, 577883), (290, 478248), (348, 398540), (435, 318832), (464, 298905), (580, 239124), (696, 199270), (870, 159416), (1160, 119562), (1392, 99635), (1740, 79708), (2320, 59781), (3480, 39854), (6960, 19927)]