19518950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1543}}^1$

素因数の和:1589

約数の個数: 48

約数和(自身を含む): 41354496

約数和(自身を除く): 21835546

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 46, 50, 55, 110, 115, 230, 253, 275, 506, 550, 575, 1150, 1265, 1543, 2530, 3086, 6325, 7715, 12650, 15430, 16973, 33946, 35489, 38575, 70978, 77150, 84865, 169730, 177445, 354890, 390379, 424325, 780758, 848650, 887225, 1774450, 1951895, 3903790, 9759475, 19518950]

約数ペア:

[(1, 19518950), (2, 9759475), (5, 3903790), (10, 1951895), (11, 1774450), (22, 887225), (23, 848650), (25, 780758), (46, 424325), (50, 390379), (55, 354890), (110, 177445), (115, 169730), (230, 84865), (253, 77150), (275, 70978), (506, 38575), (550, 35489), (575, 33946), (1150, 16973), (1265, 15430), (1543, 12650), (2530, 7715), (3086, 6325)]