449360

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:191

約数の個数: 40

約数和(自身を含む): 1078056

約数和(自身を除く): 628696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 137, 164, 205, 274, 328, 410, 548, 656, 685, 820, 1096, 1370, 1640, 2192, 2740, 3280, 5480, 5617, 10960, 11234, 22468, 28085, 44936, 56170, 89872, 112340, 224680, 449360]

約数ペア:

[(1, 449360), (2, 224680), (4, 112340), (5, 89872), (8, 56170), (10, 44936), (16, 28085), (20, 22468), (40, 11234), (41, 10960), (80, 5617), (82, 5480), (137, 3280), (164, 2740), (205, 2192), (274, 1640), (328, 1370), (410, 1096), (548, 820), (656, 685)]