2020108480

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{485603}}^1$

素因数の和:485633

約数の個数: 56

約数和(自身を含む): 5180423472

約数和(自身を除く): 3160314992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 485603, 971206, 1942412, 2428015, 3884824, 4856030, 6312839, 7769648, 9712060, 12625678, 15539296, 19424120, 25251356, 31078592, 31564195, 38848240, 50502712, 63128390, 77696480, 101005424, 126256780, 155392960, 202010848, 252513560, 404021696, 505027120, 1010054240, 2020108480]

約数ペア:

[(1, 2020108480), (2, 1010054240), (4, 505027120), (5, 404021696), (8, 252513560), (10, 202010848), (13, 155392960), (16, 126256780), (20, 101005424), (26, 77696480), (32, 63128390), (40, 50502712), (52, 38848240), (64, 31564195), (65, 31078592), (80, 25251356), (104, 19424120), (130, 15539296), (160, 12625678), (208, 9712060), (260, 7769648), (320, 6312839), (416, 4856030), (520, 3884824), (832, 2428015), (1040, 1942412), (2080, 971206), (4160, 485603)]