19973760

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:226

約数の個数: 128

約数和(自身を含む): 64920960

約数和(自身を除く): 44947200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 101, 103, 120, 128, 160, 192, 202, 206, 240, 303, 309, 320, 384, 404, 412, 480, 505, 515, 606, 618, 640, 808, 824, 960, 1010, 1030, 1212, 1236, 1515, 1545, 1616, 1648, 1920, 2020, 2060, 2424, 2472, 3030, 3090, 3232, 3296, 4040, 4120, 4848, 4944, 6060, 6180, 6464, 6592, 8080, 8240, 9696, 9888, 10403, 12120, 12360, 12928, 13184, 16160, 16480, 19392, 19776, 20806, 24240, 24720, 31209, 32320, 32960, 38784, 39552, 41612, 48480, 49440, 52015, 62418, 64640, 65920, 83224, 96960, 98880, 104030, 124836, 156045, 166448, 193920, 197760, 208060, 249672, 312090, 332896, 416120, 499344, 624180, 665792, 832240, 998688, 1248360, 1331584, 1664480, 1997376, 2496720, 3328960, 3994752, 4993440, 6657920, 9986880, 19973760]

約数ペア:

[(1, 19973760), (2, 9986880), (3, 6657920), (4, 4993440), (5, 3994752), (6, 3328960), (8, 2496720), (10, 1997376), (12, 1664480), (15, 1331584), (16, 1248360), (20, 998688), (24, 832240), (30, 665792), (32, 624180), (40, 499344), (48, 416120), (60, 332896), (64, 312090), (80, 249672), (96, 208060), (101, 197760), (103, 193920), (120, 166448), (128, 156045), (160, 124836), (192, 104030), (202, 98880), (206, 96960), (240, 83224), (303, 65920), (309, 64640), (320, 62418), (384, 52015), (404, 49440), (412, 48480), (480, 41612), (505, 39552), (515, 38784), (606, 32960), (618, 32320), (640, 31209), (808, 24720), (824, 24240), (960, 20806), (1010, 19776), (1030, 19392), (1212, 16480), (1236, 16160), (1515, 13184), (1545, 12928), (1616, 12360), (1648, 12120), (1920, 10403), (2020, 9888), (2060, 9696), (2424, 8240), (2472, 8080), (3030, 6592), (3090, 6464), (3232, 6180), (3296, 6060), (4040, 4944), (4120, 4848)]