2080785920

素因数分解:

$2^9\times 5^1\times {\mathrm{812807}}^1$

素因数の和:812830

約数の個数: 40

約数和(自身を含む): 4989015504

約数和(自身を除く): 2908229584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 812807, 1625614, 3251228, 4064035, 6502456, 8128070, 13004912, 16256140, 26009824, 32512280, 52019648, 65024560, 104039296, 130049120, 208078592, 260098240, 416157184, 520196480, 1040392960, 2080785920]

約数ペア:

[(1, 2080785920), (2, 1040392960), (4, 520196480), (5, 416157184), (8, 260098240), (10, 208078592), (16, 130049120), (20, 104039296), (32, 65024560), (40, 52019648), (64, 32512280), (80, 26009824), (128, 16256140), (160, 13004912), (256, 8128070), (320, 6502456), (512, 4064035), (640, 3251228), (1280, 1625614), (2560, 812807)]