27819440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{313}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 71486496

約数和(自身を除く): 43667056

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 101, 110, 176, 202, 220, 313, 404, 440, 505, 626, 808, 880, 1010, 1111, 1252, 1565, 1616, 2020, 2222, 2504, 3130, 3443, 4040, 4444, 5008, 5555, 6260, 6886, 8080, 8888, 11110, 12520, 13772, 17215, 17776, 22220, 25040, 27544, 31613, 34430, 44440, 55088, 63226, 68860, 88880, 126452, 137720, 158065, 252904, 275440, 316130, 347743, 505808, 632260, 695486, 1264520, 1390972, 1738715, 2529040, 2781944, 3477430, 5563888, 6954860, 13909720, 27819440]

約数ペア:

[(1, 27819440), (2, 13909720), (4, 6954860), (5, 5563888), (8, 3477430), (10, 2781944), (11, 2529040), (16, 1738715), (20, 1390972), (22, 1264520), (40, 695486), (44, 632260), (55, 505808), (80, 347743), (88, 316130), (101, 275440), (110, 252904), (176, 158065), (202, 137720), (220, 126452), (313, 88880), (404, 68860), (440, 63226), (505, 55088), (626, 44440), (808, 34430), (880, 31613), (1010, 27544), (1111, 25040), (1252, 22220), (1565, 17776), (1616, 17215), (2020, 13772), (2222, 12520), (2504, 11110), (3130, 8888), (3443, 8080), (4040, 6886), (4444, 6260), (5008, 5555)]