215487440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3967}}^1$

素因数の和:4084

約数の個数: 80

約数和(自身を含む): 578629632

約数和(自身を除く): 363142192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 97, 112, 140, 194, 280, 388, 485, 560, 679, 776, 970, 1358, 1552, 1940, 2716, 3395, 3880, 3967, 5432, 6790, 7760, 7934, 10864, 13580, 15868, 19835, 27160, 27769, 31736, 39670, 54320, 55538, 63472, 79340, 111076, 138845, 158680, 222152, 277690, 317360, 384799, 444304, 555380, 769598, 1110760, 1539196, 1923995, 2221520, 2693593, 3078392, 3847990, 5387186, 6156784, 7695980, 10774372, 13467965, 15391960, 21548744, 26935930, 30783920, 43097488, 53871860, 107743720, 215487440]

約数ペア:

[(1, 215487440), (2, 107743720), (4, 53871860), (5, 43097488), (7, 30783920), (8, 26935930), (10, 21548744), (14, 15391960), (16, 13467965), (20, 10774372), (28, 7695980), (35, 6156784), (40, 5387186), (56, 3847990), (70, 3078392), (80, 2693593), (97, 2221520), (112, 1923995), (140, 1539196), (194, 1110760), (280, 769598), (388, 555380), (485, 444304), (560, 384799), (679, 317360), (776, 277690), (970, 222152), (1358, 158680), (1552, 138845), (1940, 111076), (2716, 79340), (3395, 63472), (3880, 55538), (3967, 54320), (5432, 39670), (6790, 31736), (7760, 27769), (7934, 27160), (10864, 19835), (13580, 15868)]