15965180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1481}}^1$

素因数の和:1515

約数の個数: 72

約数和(自身を含む): 42574896

約数和(自身を除く): 26609716

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1481, 1540, 2156, 2695, 2962, 5390, 5924, 7405, 10367, 10780, 14810, 16291, 20734, 29620, 32582, 41468, 51835, 65164, 72569, 81455, 103670, 114037, 145138, 162910, 207340, 228074, 290276, 325820, 362845, 456148, 570185, 725690, 798259, 1140370, 1451380, 1596518, 2280740, 3193036, 3991295, 7982590, 15965180]

約数ペア:

[(1, 15965180), (2, 7982590), (4, 3991295), (5, 3193036), (7, 2280740), (10, 1596518), (11, 1451380), (14, 1140370), (20, 798259), (22, 725690), (28, 570185), (35, 456148), (44, 362845), (49, 325820), (55, 290276), (70, 228074), (77, 207340), (98, 162910), (110, 145138), (140, 114037), (154, 103670), (196, 81455), (220, 72569), (245, 65164), (308, 51835), (385, 41468), (490, 32582), (539, 29620), (770, 20734), (980, 16291), (1078, 14810), (1481, 10780), (1540, 10367), (2156, 7405), (2695, 5924), (2962, 5390)]