123628760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{647}}^1$

素因数の和:956

約数の個数: 64

約数和(自身を含む): 296032320

約数和(自身を除く): 172403560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 281, 340, 562, 647, 680, 1124, 1294, 1405, 2248, 2588, 2810, 3235, 4777, 5176, 5620, 6470, 9554, 10999, 11240, 12940, 19108, 21998, 23885, 25880, 38216, 43996, 47770, 54995, 87992, 95540, 109990, 181807, 191080, 219980, 363614, 439960, 727228, 909035, 1454456, 1818070, 3090719, 3636140, 6181438, 7272280, 12362876, 15453595, 24725752, 30907190, 61814380, 123628760]

約数ペア:

[(1, 123628760), (2, 61814380), (4, 30907190), (5, 24725752), (8, 15453595), (10, 12362876), (17, 7272280), (20, 6181438), (34, 3636140), (40, 3090719), (68, 1818070), (85, 1454456), (136, 909035), (170, 727228), (281, 439960), (340, 363614), (562, 219980), (647, 191080), (680, 181807), (1124, 109990), (1294, 95540), (1405, 87992), (2248, 54995), (2588, 47770), (2810, 43996), (3235, 38216), (4777, 25880), (5176, 23885), (5620, 21998), (6470, 19108), (9554, 12940), (10999, 11240)]