80361460

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 172025280

約数和(自身を除く): 91663820

約数列:

[1, 2, 4, 5, 10, 20, 137, 139, 211, 274, 278, 422, 548, 556, 685, 695, 844, 1055, 1370, 1390, 2110, 2740, 2780, 4220, 19043, 28907, 29329, 38086, 57814, 58658, 76172, 95215, 115628, 117316, 144535, 146645, 190430, 289070, 293290, 380860, 578140, 586580, 4018073, 8036146, 16072292, 20090365, 40180730, 80361460]

約数ペア:

[(1, 80361460), (2, 40180730), (4, 20090365), (5, 16072292), (10, 8036146), (20, 4018073), (137, 586580), (139, 578140), (211, 380860), (274, 293290), (278, 289070), (422, 190430), (548, 146645), (556, 144535), (685, 117316), (695, 115628), (844, 95215), (1055, 76172), (1370, 58658), (1390, 57814), (2110, 38086), (2740, 29329), (2780, 28907), (4220, 19043)]