204028280

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{45139}}^1$

素因数の和:45263

約数の個数: 32

約数和(自身を含む): 463136400

約数和(自身を除く): 259108120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 45139, 90278, 180556, 225695, 361112, 451390, 902780, 1805560, 5100707, 10201414, 20402828, 25503535, 40805656, 51007070, 102014140, 204028280]

約数ペア:

[(1, 204028280), (2, 102014140), (4, 51007070), (5, 40805656), (8, 25503535), (10, 20402828), (20, 10201414), (40, 5100707), (113, 1805560), (226, 902780), (452, 451390), (565, 361112), (904, 225695), (1130, 180556), (2260, 90278), (4520, 45139)]