80584020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40699}}^1$

素因数の和:40725

約数の個数: 72

約数和(自身を含む): 266666400

約数和(自身を除く): 186082380

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, 40699, 81398, 122097, 162796, 203495, 244194, 366291, 406990, 447689, 488388, 610485, 732582, 813980, 895378, 1220970, 1343067, 1465164, 1790756, 1831455, 2238445, 2441940, 2686134, 3662910, 4029201, 4476890, 5372268, 6715335, 7325820, 8058402, 8953780, 13430670, 16116804, 20146005, 26861340, 40292010, 80584020]

約数ペア:

[(1, 80584020), (2, 40292010), (3, 26861340), (4, 20146005), (5, 16116804), (6, 13430670), (9, 8953780), (10, 8058402), (11, 7325820), (12, 6715335), (15, 5372268), (18, 4476890), (20, 4029201), (22, 3662910), (30, 2686134), (33, 2441940), (36, 2238445), (44, 1831455), (45, 1790756), (55, 1465164), (60, 1343067), (66, 1220970), (90, 895378), (99, 813980), (110, 732582), (132, 610485), (165, 488388), (180, 447689), (198, 406990), (220, 366291), (330, 244194), (396, 203495), (495, 162796), (660, 122097), (990, 81398), (1980, 40699)]