291289215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{953}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 553900032

約数和(自身を除く): 262610817

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 71, 105, 123, 205, 213, 287, 355, 497, 615, 861, 953, 1065, 1435, 1491, 2485, 2859, 2911, 4305, 4765, 6671, 7455, 8733, 14295, 14555, 20013, 20377, 33355, 39073, 43665, 61131, 67663, 100065, 101885, 117219, 195365, 202989, 273511, 305655, 338315, 473641, 586095, 820533, 1014945, 1367555, 1420923, 2368205, 2774183, 4102665, 7104615, 8322549, 13870915, 19419281, 41612745, 58257843, 97096405, 291289215]

約数ペア:

[(1, 291289215), (3, 97096405), (5, 58257843), (7, 41612745), (15, 19419281), (21, 13870915), (35, 8322549), (41, 7104615), (71, 4102665), (105, 2774183), (123, 2368205), (205, 1420923), (213, 1367555), (287, 1014945), (355, 820533), (497, 586095), (615, 473641), (861, 338315), (953, 305655), (1065, 273511), (1435, 202989), (1491, 195365), (2485, 117219), (2859, 101885), (2911, 100065), (4305, 67663), (4765, 61131), (6671, 43665), (7455, 39073), (8733, 33355), (14295, 20377), (14555, 20013)]