71523520

素因数分解:

$2^6\times 5^1\times {\mathrm{397}}^1\times {\mathrm{563}}^1$

素因数の和:977

約数の個数: 56

約数和(自身を含む): 171047664

約数和(自身を除く): 99524144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 397, 563, 794, 1126, 1588, 1985, 2252, 2815, 3176, 3970, 4504, 5630, 6352, 7940, 9008, 11260, 12704, 15880, 18016, 22520, 25408, 31760, 36032, 45040, 63520, 90080, 127040, 180160, 223511, 447022, 894044, 1117555, 1788088, 2235110, 3576176, 4470220, 7152352, 8940440, 14304704, 17880880, 35761760, 71523520]

約数ペア:

[(1, 71523520), (2, 35761760), (4, 17880880), (5, 14304704), (8, 8940440), (10, 7152352), (16, 4470220), (20, 3576176), (32, 2235110), (40, 1788088), (64, 1117555), (80, 894044), (160, 447022), (320, 223511), (397, 180160), (563, 127040), (794, 90080), (1126, 63520), (1588, 45040), (1985, 36032), (2252, 31760), (2815, 25408), (3176, 22520), (3970, 18016), (4504, 15880), (5630, 12704), (6352, 11260), (7940, 9008)]