1780480

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 4635792

約数和(自身を除く): 2855312

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, 520, 535, 640, 832, 856, 1040, 1070, 1280, 1391, 1664, 1712, 2080, 2140, 2782, 3328, 3424, 4160, 4280, 5564, 6848, 6955, 8320, 8560, 11128, 13696, 13910, 16640, 17120, 22256, 27392, 27820, 34240, 44512, 55640, 68480, 89024, 111280, 136960, 178048, 222560, 356096, 445120, 890240, 1780480]

約数ペア:

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