31662180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15991}}^1$

素因数の和:16017

約数の個数: 72

約数和(自身を含む): 104779584

約数和(自身を除く): 73117404

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, 15991, 31982, 47973, 63964, 79955, 95946, 143919, 159910, 175901, 191892, 239865, 287838, 319820, 351802, 479730, 527703, 575676, 703604, 719595, 879505, 959460, 1055406, 1439190, 1583109, 1759010, 2110812, 2638515, 2878380, 3166218, 3518020, 5277030, 6332436, 7915545, 10554060, 15831090, 31662180]

約数ペア:

[(1, 31662180), (2, 15831090), (3, 10554060), (4, 7915545), (5, 6332436), (6, 5277030), (9, 3518020), (10, 3166218), (11, 2878380), (12, 2638515), (15, 2110812), (18, 1759010), (20, 1583109), (22, 1439190), (30, 1055406), (33, 959460), (36, 879505), (44, 719595), (45, 703604), (55, 575676), (60, 527703), (66, 479730), (90, 351802), (99, 319820), (110, 287838), (132, 239865), (165, 191892), (180, 175901), (198, 159910), (220, 143919), (330, 95946), (396, 79955), (495, 63964), (660, 47973), (990, 31982), (1980, 15991)]