80661240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20369}}^1$

素因数の和:20397

約数の個数: 96

約数和(自身を含む): 285994800

約数和(自身を除く): 205333560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 20369, 40738, 61107, 81476, 101845, 122214, 162952, 183321, 203690, 224059, 244428, 305535, 366642, 407380, 448118, 488856, 611070, 672177, 733284, 814760, 896236, 916605, 1120295, 1222140, 1344354, 1466568, 1792472, 1833210, 2016531, 2240590, 2444280, 2688708, 3360885, 3666420, 4033062, 4481180, 5377416, 6721770, 7332840, 8066124, 8962360, 10082655, 13443540, 16132248, 20165310, 26887080, 40330620, 80661240]

約数ペア:

[(1, 80661240), (2, 40330620), (3, 26887080), (4, 20165310), (5, 16132248), (6, 13443540), (8, 10082655), (9, 8962360), (10, 8066124), (11, 7332840), (12, 6721770), (15, 5377416), (18, 4481180), (20, 4033062), (22, 3666420), (24, 3360885), (30, 2688708), (33, 2444280), (36, 2240590), (40, 2016531), (44, 1833210), (45, 1792472), (55, 1466568), (60, 1344354), (66, 1222140), (72, 1120295), (88, 916605), (90, 896236), (99, 814760), (110, 733284), (120, 672177), (132, 611070), (165, 488856), (180, 448118), (198, 407380), (220, 366642), (264, 305535), (330, 244428), (360, 224059), (396, 203690), (440, 183321), (495, 162952), (660, 122214), (792, 101845), (990, 81476), (1320, 61107), (1980, 40738), (3960, 20369)]