248977995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3373}}^1$

素因数の和:3444

約数の個数: 64

約数和(自身を含む): 492334080

約数和(自身を除く): 243356085

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 37, 57, 95, 105, 111, 133, 185, 259, 285, 399, 555, 665, 703, 777, 1295, 1995, 2109, 3373, 3515, 3885, 4921, 10119, 10545, 14763, 16865, 23611, 24605, 50595, 64087, 70833, 73815, 118055, 124801, 192261, 320435, 354165, 374403, 448609, 624005, 873607, 961305, 1345827, 1872015, 2243045, 2371219, 2620821, 4368035, 6729135, 7113657, 11856095, 13104105, 16598533, 35568285, 49795599, 82992665, 248977995]

約数ペア:

[(1, 248977995), (3, 82992665), (5, 49795599), (7, 35568285), (15, 16598533), (19, 13104105), (21, 11856095), (35, 7113657), (37, 6729135), (57, 4368035), (95, 2620821), (105, 2371219), (111, 2243045), (133, 1872015), (185, 1345827), (259, 961305), (285, 873607), (399, 624005), (555, 448609), (665, 374403), (703, 354165), (777, 320435), (1295, 192261), (1995, 124801), (2109, 118055), (3373, 73815), (3515, 70833), (3885, 64087), (4921, 50595), (10119, 24605), (10545, 23611), (14763, 16865)]