2018685440

素因数分解:

$2^9\times 5^1\times {\mathrm{788549}}^1$

素因数の和:788572

約数の個数: 40

約数和(自身を含む): 4840119900

約数和(自身を除く): 2821434460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 788549, 1577098, 3154196, 3942745, 6308392, 7885490, 12616784, 15770980, 25233568, 31541960, 50467136, 63083920, 100934272, 126167840, 201868544, 252335680, 403737088, 504671360, 1009342720, 2018685440]

約数ペア:

[(1, 2018685440), (2, 1009342720), (4, 504671360), (5, 403737088), (8, 252335680), (10, 201868544), (16, 126167840), (20, 100934272), (32, 63083920), (40, 50467136), (64, 31541960), (80, 25233568), (128, 15770980), (160, 12616784), (256, 7885490), (320, 6308392), (512, 3942745), (640, 3154196), (1280, 1577098), (2560, 788549)]