19873040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2053}}^1$

素因数の和:2088

約数の個数: 60

約数和(自身を含む): 50811852

約数和(自身を除く): 30938812

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2053, 2420, 4106, 4840, 8212, 9680, 10265, 16424, 20530, 22583, 32848, 41060, 45166, 82120, 90332, 112915, 164240, 180664, 225830, 248413, 361328, 451660, 496826, 903320, 993652, 1242065, 1806640, 1987304, 2484130, 3974608, 4968260, 9936520, 19873040]

約数ペア:

[(1, 19873040), (2, 9936520), (4, 4968260), (5, 3974608), (8, 2484130), (10, 1987304), (11, 1806640), (16, 1242065), (20, 993652), (22, 903320), (40, 496826), (44, 451660), (55, 361328), (80, 248413), (88, 225830), (110, 180664), (121, 164240), (176, 112915), (220, 90332), (242, 82120), (440, 45166), (484, 41060), (605, 32848), (880, 22583), (968, 20530), (1210, 16424), (1936, 10265), (2053, 9680), (2420, 8212), (4106, 4840)]