7121920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:145

約数の個数: 88

約数和(自身を含む): 18570384

約数和(自身を除く): 11448464

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 107, 128, 130, 160, 208, 214, 256, 260, 320, 416, 428, 512, 520, 535, 640, 832, 856, 1024, 1040, 1070, 1280, 1391, 1664, 1712, 2080, 2140, 2560, 2782, 3328, 3424, 4160, 4280, 5120, 5564, 6656, 6848, 6955, 8320, 8560, 11128, 13312, 13696, 13910, 16640, 17120, 22256, 27392, 27820, 33280, 34240, 44512, 54784, 55640, 66560, 68480, 89024, 109568, 111280, 136960, 178048, 222560, 273920, 356096, 445120, 547840, 712192, 890240, 1424384, 1780480, 3560960, 7121920]

約数ペア:

[(1, 7121920), (2, 3560960), (4, 1780480), (5, 1424384), (8, 890240), (10, 712192), (13, 547840), (16, 445120), (20, 356096), (26, 273920), (32, 222560), (40, 178048), (52, 136960), (64, 111280), (65, 109568), (80, 89024), (104, 68480), (107, 66560), (128, 55640), (130, 54784), (160, 44512), (208, 34240), (214, 33280), (256, 27820), (260, 27392), (320, 22256), (416, 17120), (428, 16640), (512, 13910), (520, 13696), (535, 13312), (640, 11128), (832, 8560), (856, 8320), (1024, 6955), (1040, 6848), (1070, 6656), (1280, 5564), (1391, 5120), (1664, 4280), (1712, 4160), (2080, 3424), (2140, 3328), (2560, 2782)]