80756720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{563}}^1$

素因数の和:750

約数の個数: 80

約数和(自身を含む): 206451072

約数和(自身を除く): 125694352

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 163, 176, 220, 326, 440, 563, 652, 815, 880, 1126, 1304, 1630, 1793, 2252, 2608, 2815, 3260, 3586, 4504, 5630, 6193, 6520, 7172, 8965, 9008, 11260, 12386, 13040, 14344, 17930, 22520, 24772, 28688, 30965, 35860, 45040, 49544, 61930, 71720, 91769, 99088, 123860, 143440, 183538, 247720, 367076, 458845, 495440, 734152, 917690, 1009459, 1468304, 1835380, 2018918, 3670760, 4037836, 5047295, 7341520, 8075672, 10094590, 16151344, 20189180, 40378360, 80756720]

約数ペア:

[(1, 80756720), (2, 40378360), (4, 20189180), (5, 16151344), (8, 10094590), (10, 8075672), (11, 7341520), (16, 5047295), (20, 4037836), (22, 3670760), (40, 2018918), (44, 1835380), (55, 1468304), (80, 1009459), (88, 917690), (110, 734152), (163, 495440), (176, 458845), (220, 367076), (326, 247720), (440, 183538), (563, 143440), (652, 123860), (815, 99088), (880, 91769), (1126, 71720), (1304, 61930), (1630, 49544), (1793, 45040), (2252, 35860), (2608, 30965), (2815, 28688), (3260, 24772), (3586, 22520), (4504, 17930), (5630, 14344), (6193, 13040), (6520, 12386), (7172, 11260), (8965, 9008)]