1638918820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{46271}}^1$

素因数の和:46321

約数の個数: 96

約数和(自身を含む): 4477648896

約数和(自身を除く): 2838730076

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 28, 35, 44, 46, 55, 70, 77, 92, 110, 115, 140, 154, 161, 220, 230, 253, 308, 322, 385, 460, 506, 644, 770, 805, 1012, 1265, 1540, 1610, 1771, 2530, 3220, 3542, 5060, 7084, 8855, 17710, 35420, 46271, 92542, 185084, 231355, 323897, 462710, 508981, 647794, 925420, 1017962, 1064233, 1295588, 1619485, 2035924, 2128466, 2544905, 3238970, 3562867, 4256932, 5089810, 5321165, 6477940, 7125734, 7449631, 10179620, 10642330, 11706563, 14251468, 14899262, 17814335, 21284660, 23413126, 29798524, 35628670, 37248155, 46826252, 58532815, 71257340, 74496310, 81945941, 117065630, 148992620, 163891882, 234131260, 327783764, 409729705, 819459410, 1638918820]

約数ペア:

[(1, 1638918820), (2, 819459410), (4, 409729705), (5, 327783764), (7, 234131260), (10, 163891882), (11, 148992620), (14, 117065630), (20, 81945941), (22, 74496310), (23, 71257340), (28, 58532815), (35, 46826252), (44, 37248155), (46, 35628670), (55, 29798524), (70, 23413126), (77, 21284660), (92, 17814335), (110, 14899262), (115, 14251468), (140, 11706563), (154, 10642330), (161, 10179620), (220, 7449631), (230, 7125734), (253, 6477940), (308, 5321165), (322, 5089810), (385, 4256932), (460, 3562867), (506, 3238970), (644, 2544905), (770, 2128466), (805, 2035924), (1012, 1619485), (1265, 1295588), (1540, 1064233), (1610, 1017962), (1771, 925420), (2530, 647794), (3220, 508981), (3542, 462710), (5060, 323897), (7084, 231355), (8855, 185084), (17710, 92542), (35420, 46271)]