20677510

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2221}}^1$

素因数の和:2261

約数の個数: 48

約数和(自身を含む): 45595440

約数和(自身を除く): 24917930

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 490, 665, 931, 1330, 1862, 2221, 4442, 4655, 9310, 11105, 15547, 22210, 31094, 42199, 77735, 84398, 108829, 155470, 210995, 217658, 295393, 421990, 544145, 590786, 1088290, 1476965, 2067751, 2953930, 4135502, 10338755, 20677510]

約数ペア:

[(1, 20677510), (2, 10338755), (5, 4135502), (7, 2953930), (10, 2067751), (14, 1476965), (19, 1088290), (35, 590786), (38, 544145), (49, 421990), (70, 295393), (95, 217658), (98, 210995), (133, 155470), (190, 108829), (245, 84398), (266, 77735), (490, 42199), (665, 31094), (931, 22210), (1330, 15547), (1862, 11105), (2221, 9310), (4442, 4655)]