19455700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{769}}^1$

素因数の和:817

約数の個数: 72

約数和(自身を含む): 48121920

約数和(自身を除く): 28666220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 92, 100, 110, 115, 220, 230, 253, 275, 460, 506, 550, 575, 769, 1012, 1100, 1150, 1265, 1538, 2300, 2530, 3076, 3845, 5060, 6325, 7690, 8459, 12650, 15380, 16918, 17687, 19225, 25300, 33836, 35374, 38450, 42295, 70748, 76900, 84590, 88435, 169180, 176870, 194557, 211475, 353740, 389114, 422950, 442175, 778228, 845900, 884350, 972785, 1768700, 1945570, 3891140, 4863925, 9727850, 19455700]

約数ペア:

[(1, 19455700), (2, 9727850), (4, 4863925), (5, 3891140), (10, 1945570), (11, 1768700), (20, 972785), (22, 884350), (23, 845900), (25, 778228), (44, 442175), (46, 422950), (50, 389114), (55, 353740), (92, 211475), (100, 194557), (110, 176870), (115, 169180), (220, 88435), (230, 84590), (253, 76900), (275, 70748), (460, 42295), (506, 38450), (550, 35374), (575, 33836), (769, 25300), (1012, 19225), (1100, 17687), (1150, 16918), (1265, 15380), (1538, 12650), (2300, 8459), (2530, 7690), (3076, 6325), (3845, 5060)]