2080885760

素因数分解:

$2^{10}\times 5^1\times {\mathrm{406423}}^1$

素因数の和:406448

約数の個数: 44

約数和(自身を含む): 4991699568

約数和(自身を除く): 2910813808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 406423, 812846, 1625692, 2032115, 3251384, 4064230, 6502768, 8128460, 13005536, 16256920, 26011072, 32513840, 52022144, 65027680, 104044288, 130055360, 208088576, 260110720, 416177152, 520221440, 1040442880, 2080885760]

約数ペア:

[(1, 2080885760), (2, 1040442880), (4, 520221440), (5, 416177152), (8, 260110720), (10, 208088576), (16, 130055360), (20, 104044288), (32, 65027680), (40, 52022144), (64, 32513840), (80, 26011072), (128, 16256920), (160, 13005536), (256, 8128460), (320, 6502768), (512, 4064230), (640, 3251384), (1024, 2032115), (1280, 1625692), (2560, 812846), (5120, 406423)]