27790040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 65007360

約数和(自身を除く): 37217320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 107, 151, 172, 214, 215, 302, 344, 428, 430, 535, 604, 755, 856, 860, 1070, 1208, 1510, 1720, 2140, 3020, 4280, 4601, 6040, 6493, 9202, 12986, 16157, 18404, 23005, 25972, 32314, 32465, 36808, 46010, 51944, 64628, 64930, 80785, 92020, 129256, 129860, 161570, 184040, 259720, 323140, 646280, 694751, 1389502, 2779004, 3473755, 5558008, 6947510, 13895020, 27790040]

約数ペア:

[(1, 27790040), (2, 13895020), (4, 6947510), (5, 5558008), (8, 3473755), (10, 2779004), (20, 1389502), (40, 694751), (43, 646280), (86, 323140), (107, 259720), (151, 184040), (172, 161570), (214, 129860), (215, 129256), (302, 92020), (344, 80785), (428, 64930), (430, 64628), (535, 51944), (604, 46010), (755, 36808), (856, 32465), (860, 32314), (1070, 25972), (1208, 23005), (1510, 18404), (1720, 16157), (2140, 12986), (3020, 9202), (4280, 6493), (4601, 6040)]