15816240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1997}}^1$

素因数の和:2027

約数の個数: 120

約数和(自身を含む): 57973968

約数和(自身を除く): 42157728

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, 1997, 2640, 3960, 3994, 5991, 7920, 7988, 9985, 11982, 15976, 17973, 19970, 21967, 23964, 29955, 31952, 35946, 39940, 43934, 47928, 59910, 65901, 71892, 79880, 87868, 89865, 95856, 109835, 119820, 131802, 143784, 159760, 175736, 179730, 197703, 219670, 239640, 263604, 287568, 329505, 351472, 359460, 395406, 439340, 479280, 527208, 659010, 718920, 790812, 878680, 988515, 1054416, 1318020, 1437840, 1581624, 1757360, 1977030, 2636040, 3163248, 3954060, 5272080, 7908120, 15816240]

約数ペア:

[(1, 15816240), (2, 7908120), (3, 5272080), (4, 3954060), (5, 3163248), (6, 2636040), (8, 1977030), (9, 1757360), (10, 1581624), (11, 1437840), (12, 1318020), (15, 1054416), (16, 988515), (18, 878680), (20, 790812), (22, 718920), (24, 659010), (30, 527208), (33, 479280), (36, 439340), (40, 395406), (44, 359460), (45, 351472), (48, 329505), (55, 287568), (60, 263604), (66, 239640), (72, 219670), (80, 197703), (88, 179730), (90, 175736), (99, 159760), (110, 143784), (120, 131802), (132, 119820), (144, 109835), (165, 95856), (176, 89865), (180, 87868), (198, 79880), (220, 71892), (240, 65901), (264, 59910), (330, 47928), (360, 43934), (396, 39940), (440, 35946), (495, 31952), (528, 29955), (660, 23964), (720, 21967), (792, 19970), (880, 17973), (990, 15976), (1320, 11982), (1584, 9985), (1980, 7988), (1997, 7920), (2640, 5991), (3960, 3994)]