19705210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{571}}^1$

素因数の和:631

約数の個数: 64

約数和(自身を含む): 44478720

約数和(自身を除く): 24773510

約数列:

[1, 2, 5, 7, 10, 14, 17, 29, 34, 35, 58, 70, 85, 119, 145, 170, 203, 238, 290, 406, 493, 571, 595, 986, 1015, 1142, 1190, 2030, 2465, 2855, 3451, 3997, 4930, 5710, 6902, 7994, 9707, 16559, 17255, 19414, 19985, 33118, 34510, 39970, 48535, 67949, 82795, 97070, 115913, 135898, 165590, 231826, 281503, 339745, 563006, 579565, 679490, 1159130, 1407515, 1970521, 2815030, 3941042, 9852605, 19705210]

約数ペア:

[(1, 19705210), (2, 9852605), (5, 3941042), (7, 2815030), (10, 1970521), (14, 1407515), (17, 1159130), (29, 679490), (34, 579565), (35, 563006), (58, 339745), (70, 281503), (85, 231826), (119, 165590), (145, 135898), (170, 115913), (203, 97070), (238, 82795), (290, 67949), (406, 48535), (493, 39970), (571, 34510), (595, 33118), (986, 19985), (1015, 19414), (1142, 17255), (1190, 16559), (2030, 9707), (2465, 7994), (2855, 6902), (3451, 5710), (3997, 4930)]