131981080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{587}}^1$

素因数の和:689

約数の個数: 128

約数和(自身を含む): 375943680

約数和(自身を除く): 243962600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 73, 77, 88, 110, 140, 146, 154, 220, 280, 292, 308, 365, 385, 440, 511, 584, 587, 616, 730, 770, 803, 1022, 1174, 1460, 1540, 1606, 2044, 2348, 2555, 2920, 2935, 3080, 3212, 4015, 4088, 4109, 4696, 5110, 5621, 5870, 6424, 6457, 8030, 8218, 10220, 11242, 11740, 12914, 16060, 16436, 20440, 20545, 22484, 23480, 25828, 28105, 32120, 32285, 32872, 41090, 42851, 44968, 45199, 51656, 56210, 64570, 82180, 85702, 90398, 112420, 129140, 164360, 171404, 180796, 214255, 224840, 225995, 258280, 299957, 342808, 361592, 428510, 451990, 471361, 599914, 857020, 903980, 942722, 1199828, 1499785, 1714040, 1807960, 1885444, 2356805, 2399656, 2999570, 3299527, 3770888, 4713610, 5999140, 6599054, 9427220, 11998280, 13198108, 16497635, 18854440, 26396216, 32995270, 65990540, 131981080]

約数ペア:

[(1, 131981080), (2, 65990540), (4, 32995270), (5, 26396216), (7, 18854440), (8, 16497635), (10, 13198108), (11, 11998280), (14, 9427220), (20, 6599054), (22, 5999140), (28, 4713610), (35, 3770888), (40, 3299527), (44, 2999570), (55, 2399656), (56, 2356805), (70, 1885444), (73, 1807960), (77, 1714040), (88, 1499785), (110, 1199828), (140, 942722), (146, 903980), (154, 857020), (220, 599914), (280, 471361), (292, 451990), (308, 428510), (365, 361592), (385, 342808), (440, 299957), (511, 258280), (584, 225995), (587, 224840), (616, 214255), (730, 180796), (770, 171404), (803, 164360), (1022, 129140), (1174, 112420), (1460, 90398), (1540, 85702), (1606, 82180), (2044, 64570), (2348, 56210), (2555, 51656), (2920, 45199), (2935, 44968), (3080, 42851), (3212, 41090), (4015, 32872), (4088, 32285), (4109, 32120), (4696, 28105), (5110, 25828), (5621, 23480), (5870, 22484), (6424, 20545), (6457, 20440), (8030, 16436), (8218, 16060), (10220, 12914), (11242, 11740)]