81341597440

素因数分解:

$2^8\times 5^1\times {\mathrm{63548123}}^1$

素因数の和:63548144

約数の個数: 36

約数和(自身を含む): 194838548184

約数和(自身を除く): 113496950744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 63548123, 127096246, 254192492, 317740615, 508384984, 635481230, 1016769968, 1270962460, 2033539936, 2541924920, 4067079872, 5083849840, 8134159744, 10167699680, 16268319488, 20335399360, 40670798720, 81341597440]

約数ペア:

[(1, 81341597440), (2, 40670798720), (4, 20335399360), (5, 16268319488), (8, 10167699680), (10, 8134159744), (16, 5083849840), (20, 4067079872), (32, 2541924920), (40, 2033539936), (64, 1270962460), (80, 1016769968), (128, 635481230), (160, 508384984), (256, 317740615), (320, 254192492), (640, 127096246), (1280, 63548123)]