80235520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{15671}}^1$

素因数の和:15696

約数の個数: 44

約数和(自身を含む): 192483504

約数和(自身を除く): 112247984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 15671, 31342, 62684, 78355, 125368, 156710, 250736, 313420, 501472, 626840, 1002944, 1253680, 2005888, 2507360, 4011776, 5014720, 8023552, 10029440, 16047104, 20058880, 40117760, 80235520]

約数ペア:

[(1, 80235520), (2, 40117760), (4, 20058880), (5, 16047104), (8, 10029440), (10, 8023552), (16, 5014720), (20, 4011776), (32, 2507360), (40, 2005888), (64, 1253680), (80, 1002944), (128, 626840), (160, 501472), (256, 313420), (320, 250736), (512, 156710), (640, 125368), (1024, 78355), (1280, 62684), (2560, 31342), (5120, 15671)]