81121260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6469}}^1$

素因数の和:6511

約数の個数: 96

約数和(自身を含む): 260870400

約数和(自身を除く): 179749140

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 30, 33, 38, 44, 55, 57, 60, 66, 76, 95, 110, 114, 132, 165, 190, 209, 220, 228, 285, 330, 380, 418, 570, 627, 660, 836, 1045, 1140, 1254, 2090, 2508, 3135, 4180, 6270, 6469, 12540, 12938, 19407, 25876, 32345, 38814, 64690, 71159, 77628, 97035, 122911, 129380, 142318, 194070, 213477, 245822, 284636, 355795, 368733, 388140, 426954, 491644, 614555, 711590, 737466, 853908, 1067385, 1229110, 1352021, 1423180, 1474932, 1843665, 2134770, 2458220, 2704042, 3687330, 4056063, 4269540, 5408084, 6760105, 7374660, 8112126, 13520210, 16224252, 20280315, 27040420, 40560630, 81121260]

約数ペア:

[(1, 81121260), (2, 40560630), (3, 27040420), (4, 20280315), (5, 16224252), (6, 13520210), (10, 8112126), (11, 7374660), (12, 6760105), (15, 5408084), (19, 4269540), (20, 4056063), (22, 3687330), (30, 2704042), (33, 2458220), (38, 2134770), (44, 1843665), (55, 1474932), (57, 1423180), (60, 1352021), (66, 1229110), (76, 1067385), (95, 853908), (110, 737466), (114, 711590), (132, 614555), (165, 491644), (190, 426954), (209, 388140), (220, 368733), (228, 355795), (285, 284636), (330, 245822), (380, 213477), (418, 194070), (570, 142318), (627, 129380), (660, 122911), (836, 97035), (1045, 77628), (1140, 71159), (1254, 64690), (2090, 38814), (2508, 32345), (3135, 25876), (4180, 19407), (6270, 12938), (6469, 12540)]