123809840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:331

約数の個数: 160

約数和(自身を含む): 364262400

約数和(自身を除く): 240452560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 101, 110, 112, 140, 154, 176, 199, 202, 220, 280, 308, 385, 398, 404, 440, 505, 560, 616, 707, 770, 796, 808, 880, 995, 1010, 1111, 1232, 1393, 1414, 1540, 1592, 1616, 1990, 2020, 2189, 2222, 2786, 2828, 3080, 3184, 3535, 3980, 4040, 4378, 4444, 5555, 5572, 5656, 6160, 6965, 7070, 7777, 7960, 8080, 8756, 8888, 10945, 11110, 11144, 11312, 13930, 14140, 15323, 15554, 15920, 17512, 17776, 20099, 21890, 22220, 22288, 27860, 28280, 30646, 31108, 35024, 38885, 40198, 43780, 44440, 55720, 56560, 61292, 62216, 76615, 77770, 80396, 87560, 88880, 100495, 111440, 122584, 124432, 140693, 153230, 155540, 160792, 175120, 200990, 221089, 245168, 281386, 306460, 311080, 321584, 401980, 442178, 562772, 612920, 622160, 703465, 803960, 884356, 1105445, 1125544, 1225840, 1406930, 1547623, 1607920, 1768712, 2210890, 2251088, 2813860, 3095246, 3537424, 4421780, 5627720, 6190492, 7738115, 8843560, 11255440, 12380984, 15476230, 17687120, 24761968, 30952460, 61904920, 123809840]

約数ペア:

[(1, 123809840), (2, 61904920), (4, 30952460), (5, 24761968), (7, 17687120), (8, 15476230), (10, 12380984), (11, 11255440), (14, 8843560), (16, 7738115), (20, 6190492), (22, 5627720), (28, 4421780), (35, 3537424), (40, 3095246), (44, 2813860), (55, 2251088), (56, 2210890), (70, 1768712), (77, 1607920), (80, 1547623), (88, 1406930), (101, 1225840), (110, 1125544), (112, 1105445), (140, 884356), (154, 803960), (176, 703465), (199, 622160), (202, 612920), (220, 562772), (280, 442178), (308, 401980), (385, 321584), (398, 311080), (404, 306460), (440, 281386), (505, 245168), (560, 221089), (616, 200990), (707, 175120), (770, 160792), (796, 155540), (808, 153230), (880, 140693), (995, 124432), (1010, 122584), (1111, 111440), (1232, 100495), (1393, 88880), (1414, 87560), (1540, 80396), (1592, 77770), (1616, 76615), (1990, 62216), (2020, 61292), (2189, 56560), (2222, 55720), (2786, 44440), (2828, 43780), (3080, 40198), (3184, 38885), (3535, 35024), (3980, 31108), (4040, 30646), (4378, 28280), (4444, 27860), (5555, 22288), (5572, 22220), (5656, 21890), (6160, 20099), (6965, 17776), (7070, 17512), (7777, 15920), (7960, 15554), (8080, 15323), (8756, 14140), (8888, 13930), (10945, 11312), (11110, 11144)]