499991680

素因数分解:

$2^7\times 5^1\times {\mathrm{569}}^1\times {\mathrm{1373}}^1$

素因数の和:1961

約数の個数: 64

約数和(自身を含む): 1198265400

約数和(自身を除く): 698273720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 569, 640, 1138, 1373, 2276, 2746, 2845, 4552, 5492, 5690, 6865, 9104, 10984, 11380, 13730, 18208, 21968, 22760, 27460, 36416, 43936, 45520, 54920, 72832, 87872, 91040, 109840, 175744, 182080, 219680, 364160, 439360, 781237, 878720, 1562474, 3124948, 3906185, 6249896, 7812370, 12499792, 15624740, 24999584, 31249480, 49999168, 62498960, 99998336, 124997920, 249995840, 499991680]

約数ペア:

[(1, 499991680), (2, 249995840), (4, 124997920), (5, 99998336), (8, 62498960), (10, 49999168), (16, 31249480), (20, 24999584), (32, 15624740), (40, 12499792), (64, 7812370), (80, 6249896), (128, 3906185), (160, 3124948), (320, 1562474), (569, 878720), (640, 781237), (1138, 439360), (1373, 364160), (2276, 219680), (2746, 182080), (2845, 175744), (4552, 109840), (5492, 91040), (5690, 87872), (6865, 72832), (9104, 54920), (10984, 45520), (11380, 43936), (13730, 36416), (18208, 27460), (21968, 22760)]