20111079680

素因数分解:

$2^8\times 5^1\times {\mathrm{15711781}}^1$

素因数の和:15711802

約数の個数: 36

約数和(自身を含む): 48172323612

約数和(自身を除く): 28061243932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15711781, 31423562, 62847124, 78558905, 125694248, 157117810, 251388496, 314235620, 502776992, 628471240, 1005553984, 1256942480, 2011107968, 2513884960, 4022215936, 5027769920, 10055539840, 20111079680]

約数ペア:

[(1, 20111079680), (2, 10055539840), (4, 5027769920), (5, 4022215936), (8, 2513884960), (10, 2011107968), (16, 1256942480), (20, 1005553984), (32, 628471240), (40, 502776992), (64, 314235620), (80, 251388496), (128, 157117810), (160, 125694248), (256, 78558905), (320, 62847124), (640, 31423562), (1280, 15711781)]