219714100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{587}}^1$

素因数の和:817

約数の個数: 72

約数和(自身を含む): 505280160

約数和(自身を除く): 285566060

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 197, 380, 394, 475, 587, 788, 950, 985, 1174, 1900, 1970, 2348, 2935, 3743, 3940, 4925, 5870, 7486, 9850, 11153, 11740, 14675, 14972, 18715, 19700, 22306, 29350, 37430, 44612, 55765, 58700, 74860, 93575, 111530, 115639, 187150, 223060, 231278, 278825, 374300, 462556, 557650, 578195, 1115300, 1156390, 2197141, 2312780, 2890975, 4394282, 5781950, 8788564, 10985705, 11563900, 21971410, 43942820, 54928525, 109857050, 219714100]

約数ペア:

[(1, 219714100), (2, 109857050), (4, 54928525), (5, 43942820), (10, 21971410), (19, 11563900), (20, 10985705), (25, 8788564), (38, 5781950), (50, 4394282), (76, 2890975), (95, 2312780), (100, 2197141), (190, 1156390), (197, 1115300), (380, 578195), (394, 557650), (475, 462556), (587, 374300), (788, 278825), (950, 231278), (985, 223060), (1174, 187150), (1900, 115639), (1970, 111530), (2348, 93575), (2935, 74860), (3743, 58700), (3940, 55765), (4925, 44612), (5870, 37430), (7486, 29350), (9850, 22306), (11153, 19700), (11740, 18715), (14675, 14972)]