311857140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{3271}}^1$

素因数の和:3517

約数の個数: 96

約数和(自身を含む): 1002645504

約数和(自身を除く): 690788364

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 227, 420, 454, 681, 908, 1135, 1362, 1589, 2270, 2724, 3178, 3271, 3405, 4540, 4767, 6356, 6542, 6810, 7945, 9534, 9813, 13084, 13620, 15890, 16355, 19068, 19626, 22897, 23835, 31780, 32710, 39252, 45794, 47670, 49065, 65420, 68691, 91588, 95340, 98130, 114485, 137382, 196260, 228970, 274764, 343455, 457940, 686910, 742517, 1373820, 1485034, 2227551, 2970068, 3712585, 4455102, 5197619, 7425170, 8910204, 10395238, 11137755, 14850340, 15592857, 20790476, 22275510, 25988095, 31185714, 44551020, 51976190, 62371428, 77964285, 103952380, 155928570, 311857140]

約数ペア:

[(1, 311857140), (2, 155928570), (3, 103952380), (4, 77964285), (5, 62371428), (6, 51976190), (7, 44551020), (10, 31185714), (12, 25988095), (14, 22275510), (15, 20790476), (20, 15592857), (21, 14850340), (28, 11137755), (30, 10395238), (35, 8910204), (42, 7425170), (60, 5197619), (70, 4455102), (84, 3712585), (105, 2970068), (140, 2227551), (210, 1485034), (227, 1373820), (420, 742517), (454, 686910), (681, 457940), (908, 343455), (1135, 274764), (1362, 228970), (1589, 196260), (2270, 137382), (2724, 114485), (3178, 98130), (3271, 95340), (3405, 91588), (4540, 68691), (4767, 65420), (6356, 49065), (6542, 47670), (6810, 45794), (7945, 39252), (9534, 32710), (9813, 31780), (13084, 23835), (13620, 22897), (15890, 19626), (16355, 19068)]