80726580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40771}}^1$

素因数の和:40797

約数の個数: 72

約数和(自身を含む): 267138144

約数和(自身を除く): 186411564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 40771, 81542, 122313, 163084, 203855, 244626, 366939, 407710, 448481, 489252, 611565, 733878, 815420, 896962, 1223130, 1345443, 1467756, 1793924, 1834695, 2242405, 2446260, 2690886, 3669390, 4036329, 4484810, 5381772, 6727215, 7338780, 8072658, 8969620, 13454430, 16145316, 20181645, 26908860, 40363290, 80726580]

約数ペア:

[(1, 80726580), (2, 40363290), (3, 26908860), (4, 20181645), (5, 16145316), (6, 13454430), (9, 8969620), (10, 8072658), (11, 7338780), (12, 6727215), (15, 5381772), (18, 4484810), (20, 4036329), (22, 3669390), (30, 2690886), (33, 2446260), (36, 2242405), (44, 1834695), (45, 1793924), (55, 1467756), (60, 1345443), (66, 1223130), (90, 896962), (99, 815420), (110, 733878), (132, 611565), (165, 489252), (180, 448481), (198, 407710), (220, 366939), (330, 244626), (396, 203855), (495, 163084), (660, 122313), (990, 81542), (1980, 40771)]