243969680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{74381}}^1$

素因数の和:74435

約数の個数: 40

約数和(自身を含む): 581072184

約数和(自身を除く): 337102504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 74381, 148762, 297524, 371905, 595048, 743810, 1190096, 1487620, 2975240, 3049621, 5950480, 6099242, 12198484, 15248105, 24396968, 30496210, 48793936, 60992420, 121984840, 243969680]

約数ペア:

[(1, 243969680), (2, 121984840), (4, 60992420), (5, 48793936), (8, 30496210), (10, 24396968), (16, 15248105), (20, 12198484), (40, 6099242), (41, 5950480), (80, 3049621), (82, 2975240), (164, 1487620), (205, 1190096), (328, 743810), (410, 595048), (656, 371905), (820, 297524), (1640, 148762), (3280, 74381)]