20008532120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16135913}}^1$

素因数の和:16135955

約数の個数: 32

約数和(自身を含む): 46471432320

約数和(自身を除く): 26462900200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16135913, 32271826, 64543652, 80679565, 129087304, 161359130, 322718260, 500213303, 645436520, 1000426606, 2000853212, 2501066515, 4001706424, 5002133030, 10004266060, 20008532120]

約数ペア:

[(1, 20008532120), (2, 10004266060), (4, 5002133030), (5, 4001706424), (8, 2501066515), (10, 2000853212), (20, 1000426606), (31, 645436520), (40, 500213303), (62, 322718260), (124, 161359130), (155, 129087304), (248, 80679565), (310, 64543652), (620, 32271826), (1240, 16135913)]