919928890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1\times {\mathrm{439}}^1$

素因数の和:775

約数の個数: 64

約数和(自身を含む): 1796256000

約数和(自身を除く): 876327110

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 269, 410, 439, 538, 779, 878, 1345, 1558, 2195, 2690, 3895, 4390, 5111, 7790, 8341, 10222, 11029, 16682, 17999, 22058, 25555, 35998, 41705, 51110, 55145, 83410, 89995, 110290, 118091, 179990, 209551, 236182, 341981, 419102, 590455, 683962, 1047755, 1180910, 1709905, 2095510, 2243729, 3419810, 4487458, 4841731, 9683462, 11218645, 22437290, 24208655, 48417310, 91992889, 183985778, 459964445, 919928890]

約数ペア:

[(1, 919928890), (2, 459964445), (5, 183985778), (10, 91992889), (19, 48417310), (38, 24208655), (41, 22437290), (82, 11218645), (95, 9683462), (190, 4841731), (205, 4487458), (269, 3419810), (410, 2243729), (439, 2095510), (538, 1709905), (779, 1180910), (878, 1047755), (1345, 683962), (1558, 590455), (2195, 419102), (2690, 341981), (3895, 236182), (4390, 209551), (5111, 179990), (7790, 118091), (8341, 110290), (10222, 89995), (11029, 83410), (16682, 55145), (17999, 51110), (22058, 41705), (25555, 35998)]