19804150

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1013}}^1$

素因数の和:1065

約数の個数: 48

約数和(自身を含む): 40738464

約数和(自身を除く): 20934314

約数列:

[1, 2, 5, 10, 17, 23, 25, 34, 46, 50, 85, 115, 170, 230, 391, 425, 575, 782, 850, 1013, 1150, 1955, 2026, 3910, 5065, 9775, 10130, 17221, 19550, 23299, 25325, 34442, 46598, 50650, 86105, 116495, 172210, 232990, 396083, 430525, 582475, 792166, 861050, 1164950, 1980415, 3960830, 9902075, 19804150]

約数ペア:

[(1, 19804150), (2, 9902075), (5, 3960830), (10, 1980415), (17, 1164950), (23, 861050), (25, 792166), (34, 582475), (46, 430525), (50, 396083), (85, 232990), (115, 172210), (170, 116495), (230, 86105), (391, 50650), (425, 46598), (575, 34442), (782, 25325), (850, 23299), (1013, 19550), (1150, 17221), (1955, 10130), (2026, 9775), (3910, 5065)]