51691440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{215381}}^1$

素因数の和:215397

約数の個数: 40

約数和(自身を含む): 160244208

約数和(自身を除く): 108552768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 215381, 430762, 646143, 861524, 1076905, 1292286, 1723048, 2153810, 2584572, 3230715, 3446096, 4307620, 5169144, 6461430, 8615240, 10338288, 12922860, 17230480, 25845720, 51691440]

約数ペア:

[(1, 51691440), (2, 25845720), (3, 17230480), (4, 12922860), (5, 10338288), (6, 8615240), (8, 6461430), (10, 5169144), (12, 4307620), (15, 3446096), (16, 3230715), (20, 2584572), (24, 2153810), (30, 1723048), (40, 1292286), (48, 1076905), (60, 861524), (80, 646143), (120, 430762), (240, 215381)]