179990990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{683}}^1$

素因数の和:801

約数の個数: 48

約数和(自身を含む): 347124528

約数和(自身を除く): 167133538

約数列:

[1, 2, 5, 10, 19, 38, 73, 95, 146, 190, 361, 365, 683, 722, 730, 1366, 1387, 1805, 2774, 3415, 3610, 6830, 6935, 12977, 13870, 25954, 26353, 49859, 52706, 64885, 99718, 129770, 131765, 246563, 249295, 263530, 493126, 498590, 947321, 1232815, 1894642, 2465630, 4736605, 9473210, 17999099, 35998198, 89995495, 179990990]

約数ペア:

[(1, 179990990), (2, 89995495), (5, 35998198), (10, 17999099), (19, 9473210), (38, 4736605), (73, 2465630), (95, 1894642), (146, 1232815), (190, 947321), (361, 498590), (365, 493126), (683, 263530), (722, 249295), (730, 246563), (1366, 131765), (1387, 129770), (1805, 99718), (2774, 64885), (3415, 52706), (3610, 49859), (6830, 26353), (6935, 25954), (12977, 13870)]