2100156905

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{1531}}^1$

素因数の和:2070

約数の個数: 48

約数和(自身を含む): 3206537280

約数和(自身を除く): 1106380375

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 509, 539, 1531, 2545, 2695, 3563, 5599, 7655, 10717, 16841, 17815, 24941, 27995, 39193, 53585, 75019, 84205, 117887, 124705, 195965, 274351, 375095, 589435, 779279, 825209, 1371755, 3896395, 4126045, 5454953, 8572069, 27274765, 38184671, 42860345, 60004483, 190923355, 300022415, 420031381, 2100156905]

約数ペア:

[(1, 2100156905), (5, 420031381), (7, 300022415), (11, 190923355), (35, 60004483), (49, 42860345), (55, 38184671), (77, 27274765), (245, 8572069), (385, 5454953), (509, 4126045), (539, 3896395), (1531, 1371755), (2545, 825209), (2695, 779279), (3563, 589435), (5599, 375095), (7655, 274351), (10717, 195965), (16841, 124705), (17815, 117887), (24941, 84205), (27995, 75019), (39193, 53585)]