19904970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{743}}^1$

素因数の和:819

約数の個数: 64

約数和(自身を含む): 51425280

約数和(自身を除く): 31520310

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 47, 57, 94, 95, 114, 141, 190, 235, 282, 285, 470, 570, 705, 743, 893, 1410, 1486, 1786, 2229, 2679, 3715, 4458, 4465, 5358, 7430, 8930, 11145, 13395, 14117, 22290, 26790, 28234, 34921, 42351, 69842, 70585, 84702, 104763, 141170, 174605, 209526, 211755, 349210, 423510, 523815, 663499, 1047630, 1326998, 1990497, 3317495, 3980994, 6634990, 9952485, 19904970]

約数ペア:

[(1, 19904970), (2, 9952485), (3, 6634990), (5, 3980994), (6, 3317495), (10, 1990497), (15, 1326998), (19, 1047630), (30, 663499), (38, 523815), (47, 423510), (57, 349210), (94, 211755), (95, 209526), (114, 174605), (141, 141170), (190, 104763), (235, 84702), (282, 70585), (285, 69842), (470, 42351), (570, 34921), (705, 28234), (743, 26790), (893, 22290), (1410, 14117), (1486, 13395), (1786, 11145), (2229, 8930), (2679, 7430), (3715, 5358), (4458, 4465)]