65517680

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{8443}}^1$

素因数の和:8553

約数の個数: 40

約数和(自身を含む): 153917232

約数和(自身を除く): 88399552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 8443, 16886, 33772, 42215, 67544, 84430, 135088, 168860, 337720, 675440, 818971, 1637942, 3275884, 4094855, 6551768, 8189710, 13103536, 16379420, 32758840, 65517680]

約数ペア:

[(1, 65517680), (2, 32758840), (4, 16379420), (5, 13103536), (8, 8189710), (10, 6551768), (16, 4094855), (20, 3275884), (40, 1637942), (80, 818971), (97, 675440), (194, 337720), (388, 168860), (485, 135088), (776, 84430), (970, 67544), (1552, 42215), (1940, 33772), (3880, 16886), (7760, 8443)]