2015198720

素因数分解:

$2^9\times 5^1\times {\mathrm{787187}}^1$

素因数の和:787210

約数の個数: 40

約数和(自身を含む): 4831759944

約数和(自身を除く): 2816561224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 787187, 1574374, 3148748, 3935935, 6297496, 7871870, 12594992, 15743740, 25189984, 31487480, 50379968, 62974960, 100759936, 125949920, 201519872, 251899840, 403039744, 503799680, 1007599360, 2015198720]

約数ペア:

[(1, 2015198720), (2, 1007599360), (4, 503799680), (5, 403039744), (8, 251899840), (10, 201519872), (16, 125949920), (20, 100759936), (32, 62974960), (40, 50379968), (64, 31487480), (80, 25189984), (128, 15743740), (160, 12594992), (256, 7871870), (320, 6297496), (512, 3935935), (640, 3148748), (1280, 1574374), (2560, 787187)]