20157051845

素因数分解:

$5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{4021}}^1$

素因数の和:4163

約数の個数: 64

約数和(自身を含む): 29344512000

約数和(自身を除く): 9187460155

約数列:

[1, 5, 7, 35, 37, 49, 79, 185, 245, 259, 343, 395, 553, 1295, 1715, 1813, 2765, 2923, 3871, 4021, 9065, 12691, 14615, 19355, 20105, 20461, 27097, 28147, 63455, 102305, 135485, 140735, 143227, 148777, 197029, 317659, 716135, 743885, 985145, 1002589, 1041439, 1379203, 1588295, 2223613, 5012945, 5207195, 6896015, 7290073, 11118065, 11753383, 15565291, 36450365, 51030511, 58766915, 77826455, 82273681, 108957037, 255152555, 411368405, 544785185, 575915767, 2879578835, 4031410369, 20157051845]

約数ペア:

[(1, 20157051845), (5, 4031410369), (7, 2879578835), (35, 575915767), (37, 544785185), (49, 411368405), (79, 255152555), (185, 108957037), (245, 82273681), (259, 77826455), (343, 58766915), (395, 51030511), (553, 36450365), (1295, 15565291), (1715, 11753383), (1813, 11118065), (2765, 7290073), (2923, 6896015), (3871, 5207195), (4021, 5012945), (9065, 2223613), (12691, 1588295), (14615, 1379203), (19355, 1041439), (20105, 1002589), (20461, 985145), (27097, 743885), (28147, 716135), (63455, 317659), (102305, 197029), (135485, 148777), (140735, 143227)]