19645450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1553}}^1$

素因数の和:1599

約数の個数: 48

約数和(自身を含む): 41622336

約数和(自身を除く): 21976886

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 46, 50, 55, 110, 115, 230, 253, 275, 506, 550, 575, 1150, 1265, 1553, 2530, 3106, 6325, 7765, 12650, 15530, 17083, 34166, 35719, 38825, 71438, 77650, 85415, 170830, 178595, 357190, 392909, 427075, 785818, 854150, 892975, 1785950, 1964545, 3929090, 9822725, 19645450]

約数ペア:

[(1, 19645450), (2, 9822725), (5, 3929090), (10, 1964545), (11, 1785950), (22, 892975), (23, 854150), (25, 785818), (46, 427075), (50, 392909), (55, 357190), (110, 178595), (115, 170830), (230, 85415), (253, 77650), (275, 71438), (506, 38825), (550, 35719), (575, 34166), (1150, 17083), (1265, 15530), (1553, 12650), (2530, 7765), (3106, 6325)]