2178978825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:715

約数の個数: 96

約数和(自身を含む): 3967996032

約数和(自身を除く): 1789017207

約数列:

[1, 3, 5, 15, 17, 25, 41, 51, 73, 75, 85, 123, 205, 219, 255, 365, 425, 571, 615, 697, 1025, 1095, 1241, 1275, 1713, 1825, 2091, 2855, 2993, 3075, 3485, 3723, 5475, 6205, 8565, 8979, 9707, 10455, 14275, 14965, 17425, 18615, 23411, 29121, 31025, 41683, 42825, 44895, 48535, 50881, 52275, 70233, 74825, 93075, 117055, 125049, 145605, 152643, 208415, 224475, 242675, 254405, 351165, 397987, 585275, 625245, 708611, 728025, 763215, 1042075, 1193961, 1272025, 1709003, 1755825, 1989935, 2125833, 3126225, 3543055, 3816075, 5127009, 5969805, 8545015, 9949675, 10629165, 17715275, 25635045, 29053051, 29849025, 42725075, 53145825, 87159153, 128175225, 145265255, 435795765, 726326275, 2178978825]

約数ペア:

[(1, 2178978825), (3, 726326275), (5, 435795765), (15, 145265255), (17, 128175225), (25, 87159153), (41, 53145825), (51, 42725075), (73, 29849025), (75, 29053051), (85, 25635045), (123, 17715275), (205, 10629165), (219, 9949675), (255, 8545015), (365, 5969805), (425, 5127009), (571, 3816075), (615, 3543055), (697, 3126225), (1025, 2125833), (1095, 1989935), (1241, 1755825), (1275, 1709003), (1713, 1272025), (1825, 1193961), (2091, 1042075), (2855, 763215), (2993, 728025), (3075, 708611), (3485, 625245), (3723, 585275), (5475, 397987), (6205, 351165), (8565, 254405), (8979, 242675), (9707, 224475), (10455, 208415), (14275, 152643), (14965, 145605), (17425, 125049), (18615, 117055), (23411, 93075), (29121, 74825), (31025, 70233), (41683, 52275), (42825, 50881), (44895, 48535)]