20201084800

素因数分解:

$2^7\times 5^2\times {\mathrm{13}}^1\times {\mathrm{485603}}^1$

素因数の和:485640

約数の個数: 96

約数和(自身を含む): 53741794680

約数和(自身を除く): 33540709880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 260, 320, 325, 400, 416, 520, 640, 650, 800, 832, 1040, 1300, 1600, 1664, 2080, 2600, 3200, 4160, 5200, 8320, 10400, 20800, 41600, 485603, 971206, 1942412, 2428015, 3884824, 4856030, 6312839, 7769648, 9712060, 12140075, 12625678, 15539296, 19424120, 24280150, 25251356, 31078592, 31564195, 38848240, 48560300, 50502712, 62157184, 63128390, 77696480, 97120600, 101005424, 126256780, 155392960, 157820975, 194241200, 202010848, 252513560, 310785920, 315641950, 388482400, 404021696, 505027120, 631283900, 776964800, 808043392, 1010054240, 1262567800, 1553929600, 2020108480, 2525135600, 4040216960, 5050271200, 10100542400, 20201084800]

約数ペア:

[(1, 20201084800), (2, 10100542400), (4, 5050271200), (5, 4040216960), (8, 2525135600), (10, 2020108480), (13, 1553929600), (16, 1262567800), (20, 1010054240), (25, 808043392), (26, 776964800), (32, 631283900), (40, 505027120), (50, 404021696), (52, 388482400), (64, 315641950), (65, 310785920), (80, 252513560), (100, 202010848), (104, 194241200), (128, 157820975), (130, 155392960), (160, 126256780), (200, 101005424), (208, 97120600), (260, 77696480), (320, 63128390), (325, 62157184), (400, 50502712), (416, 48560300), (520, 38848240), (640, 31564195), (650, 31078592), (800, 25251356), (832, 24280150), (1040, 19424120), (1300, 15539296), (1600, 12625678), (1664, 12140075), (2080, 9712060), (2600, 7769648), (3200, 6312839), (4160, 4856030), (5200, 3884824), (8320, 2428015), (10400, 1942412), (20800, 971206), (41600, 485603)]