258014720

素因数分解:

$2^9\times 5^1\times {\mathrm{100787}}^1$

素因数の和:100810

約数の個数: 40

約数和(自身を含む): 618636744

約数和(自身を除く): 360622024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 100787, 201574, 403148, 503935, 806296, 1007870, 1612592, 2015740, 3225184, 4031480, 6450368, 8062960, 12900736, 16125920, 25801472, 32251840, 51602944, 64503680, 129007360, 258014720]

約数ペア:

[(1, 258014720), (2, 129007360), (4, 64503680), (5, 51602944), (8, 32251840), (10, 25801472), (16, 16125920), (20, 12900736), (32, 8062960), (40, 6450368), (64, 4031480), (80, 3225184), (128, 2015740), (160, 1612592), (256, 1007870), (320, 806296), (512, 503935), (640, 403148), (1280, 201574), (2560, 100787)]