778877660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{35053}}^1$

素因数の和:35174

約数の個数: 48

約数和(自身を含む): 1802056032

約数和(自身を除く): 1023178372

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 2020, 2222, 4444, 5555, 11110, 22220, 35053, 70106, 140212, 175265, 350530, 385583, 701060, 771166, 1542332, 1927915, 3540353, 3855830, 7080706, 7711660, 14161412, 17701765, 35403530, 38943883, 70807060, 77887766, 155775532, 194719415, 389438830, 778877660]

約数ペア:

[(1, 778877660), (2, 389438830), (4, 194719415), (5, 155775532), (10, 77887766), (11, 70807060), (20, 38943883), (22, 35403530), (44, 17701765), (55, 14161412), (101, 7711660), (110, 7080706), (202, 3855830), (220, 3540353), (404, 1927915), (505, 1542332), (1010, 771166), (1111, 701060), (2020, 385583), (2222, 350530), (4444, 175265), (5555, 140212), (11110, 70106), (22220, 35053)]