19704190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 42130368

約数和(自身を除く): 22426178

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 41, 55, 82, 85, 110, 170, 187, 205, 257, 374, 410, 451, 514, 697, 902, 935, 1285, 1394, 1870, 2255, 2570, 2827, 3485, 4369, 4510, 5654, 6970, 7667, 8738, 10537, 14135, 15334, 21074, 21845, 28270, 38335, 43690, 48059, 52685, 76670, 96118, 105370, 115907, 179129, 231814, 240295, 358258, 480590, 579535, 895645, 1159070, 1791290, 1970419, 3940838, 9852095, 19704190]

約数ペア:

[(1, 19704190), (2, 9852095), (5, 3940838), (10, 1970419), (11, 1791290), (17, 1159070), (22, 895645), (34, 579535), (41, 480590), (55, 358258), (82, 240295), (85, 231814), (110, 179129), (170, 115907), (187, 105370), (205, 96118), (257, 76670), (374, 52685), (410, 48059), (451, 43690), (514, 38335), (697, 28270), (902, 21845), (935, 21074), (1285, 15334), (1394, 14135), (1870, 10537), (2255, 8738), (2570, 7667), (2827, 6970), (3485, 5654), (4369, 4510)]