18676540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{337}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 41906592

約数和(自身を除く): 23230052

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 163, 170, 326, 337, 340, 652, 674, 815, 1348, 1630, 1685, 2771, 3260, 3370, 5542, 5729, 6740, 11084, 11458, 13855, 22916, 27710, 28645, 54931, 55420, 57290, 109862, 114580, 219724, 274655, 549310, 933827, 1098620, 1867654, 3735308, 4669135, 9338270, 18676540]

約数ペア:

[(1, 18676540), (2, 9338270), (4, 4669135), (5, 3735308), (10, 1867654), (17, 1098620), (20, 933827), (34, 549310), (68, 274655), (85, 219724), (163, 114580), (170, 109862), (326, 57290), (337, 55420), (340, 54931), (652, 28645), (674, 27710), (815, 22916), (1348, 13855), (1630, 11458), (1685, 11084), (2771, 6740), (3260, 5729), (3370, 5542)]