15356780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 36033984

約数和(自身を除く): 20677204

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 47, 62, 68, 85, 94, 124, 155, 170, 188, 235, 310, 340, 470, 527, 620, 799, 940, 961, 1054, 1457, 1598, 1922, 2108, 2635, 2914, 3196, 3844, 3995, 4805, 5270, 5828, 7285, 7990, 9610, 10540, 14570, 15980, 16337, 19220, 24769, 29140, 32674, 45167, 49538, 65348, 81685, 90334, 99076, 123845, 163370, 180668, 225835, 247690, 326740, 451670, 495380, 767839, 903340, 1535678, 3071356, 3839195, 7678390, 15356780]

約数ペア:

[(1, 15356780), (2, 7678390), (4, 3839195), (5, 3071356), (10, 1535678), (17, 903340), (20, 767839), (31, 495380), (34, 451670), (47, 326740), (62, 247690), (68, 225835), (85, 180668), (94, 163370), (124, 123845), (155, 99076), (170, 90334), (188, 81685), (235, 65348), (310, 49538), (340, 45167), (470, 32674), (527, 29140), (620, 24769), (799, 19220), (940, 16337), (961, 15980), (1054, 14570), (1457, 10540), (1598, 9610), (1922, 7990), (2108, 7285), (2635, 5828), (2914, 5270), (3196, 4805), (3844, 3995)]