31687920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4001}}^1$

素因数の和:4031

約数の個数: 120

約数和(自身を含む): 116122032

約数和(自身を除く): 84434112

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3960, 4001, 7920, 8002, 12003, 16004, 20005, 24006, 32008, 36009, 40010, 44011, 48012, 60015, 64016, 72018, 80020, 88022, 96024, 120030, 132033, 144036, 160040, 176044, 180045, 192048, 220055, 240060, 264066, 288072, 320080, 352088, 360090, 396099, 440110, 480120, 528132, 576144, 660165, 704176, 720180, 792198, 880220, 960240, 1056264, 1320330, 1440360, 1584396, 1760440, 1980495, 2112528, 2640660, 2880720, 3168792, 3520880, 3960990, 5281320, 6337584, 7921980, 10562640, 15843960, 31687920]

約数ペア:

[(1, 31687920), (2, 15843960), (3, 10562640), (4, 7921980), (5, 6337584), (6, 5281320), (8, 3960990), (9, 3520880), (10, 3168792), (11, 2880720), (12, 2640660), (15, 2112528), (16, 1980495), (18, 1760440), (20, 1584396), (22, 1440360), (24, 1320330), (30, 1056264), (33, 960240), (36, 880220), (40, 792198), (44, 720180), (45, 704176), (48, 660165), (55, 576144), (60, 528132), (66, 480120), (72, 440110), (80, 396099), (88, 360090), (90, 352088), (99, 320080), (110, 288072), (120, 264066), (132, 240060), (144, 220055), (165, 192048), (176, 180045), (180, 176044), (198, 160040), (220, 144036), (240, 132033), (264, 120030), (330, 96024), (360, 88022), (396, 80020), (440, 72018), (495, 64016), (528, 60015), (660, 48012), (720, 44011), (792, 40010), (880, 36009), (990, 32008), (1320, 24006), (1584, 20005), (1980, 16004), (2640, 12003), (3960, 8002), (4001, 7920)]