247809815

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 343918848

約数和(自身を除く): 96109033

約数列:

[1, 5, 11, 31, 55, 73, 121, 155, 181, 341, 365, 605, 803, 905, 1705, 1991, 2263, 3751, 4015, 5611, 8833, 9955, 11315, 13213, 18755, 21901, 24893, 28055, 44165, 61721, 66065, 109505, 124465, 145343, 273823, 308605, 409603, 678931, 726715, 1369115, 1598773, 2048015, 3394655, 4505633, 7993865, 22528165, 49561963, 247809815]

約数ペア:

[(1, 247809815), (5, 49561963), (11, 22528165), (31, 7993865), (55, 4505633), (73, 3394655), (121, 2048015), (155, 1598773), (181, 1369115), (341, 726715), (365, 678931), (605, 409603), (803, 308605), (905, 273823), (1705, 145343), (1991, 124465), (2263, 109505), (3751, 66065), (4015, 61721), (5611, 44165), (8833, 28055), (9955, 24893), (11315, 21901), (13213, 18755)]