101824640

素因数分解:

$2^7\times 5^1\times {\mathrm{389}}^1\times {\mathrm{409}}^1$

素因数の和:817

約数の個数: 64

約数和(自身を含む): 244647000

約数和(自身を除く): 142822360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 389, 409, 640, 778, 818, 1556, 1636, 1945, 2045, 3112, 3272, 3890, 4090, 6224, 6544, 7780, 8180, 12448, 13088, 15560, 16360, 24896, 26176, 31120, 32720, 49792, 52352, 62240, 65440, 124480, 130880, 159101, 248960, 261760, 318202, 636404, 795505, 1272808, 1591010, 2545616, 3182020, 5091232, 6364040, 10182464, 12728080, 20364928, 25456160, 50912320, 101824640]

約数ペア:

[(1, 101824640), (2, 50912320), (4, 25456160), (5, 20364928), (8, 12728080), (10, 10182464), (16, 6364040), (20, 5091232), (32, 3182020), (40, 2545616), (64, 1591010), (80, 1272808), (128, 795505), (160, 636404), (320, 318202), (389, 261760), (409, 248960), (640, 159101), (778, 130880), (818, 124480), (1556, 65440), (1636, 62240), (1945, 52352), (2045, 49792), (3112, 32720), (3272, 31120), (3890, 26176), (4090, 24896), (6224, 16360), (6544, 15560), (7780, 13088), (8180, 12448)]