20218730105

素因数分解:

$5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{18743}}^1$

素因数の和:18823

約数の個数: 64

約数和(自身を含む): 30770150400

約数和(自身を除く): 10551420295

約数列:

[1, 5, 7, 17, 35, 37, 49, 85, 119, 185, 245, 259, 343, 595, 629, 833, 1295, 1715, 1813, 3145, 4165, 4403, 5831, 9065, 12691, 18743, 22015, 29155, 30821, 63455, 93715, 131201, 154105, 215747, 318631, 656005, 693491, 918407, 1078735, 1593155, 2230417, 3467455, 4592035, 4854437, 6428849, 11152085, 11789347, 15612919, 24272185, 32144245, 33981059, 58946735, 78064595, 82525429, 109290433, 169905295, 237867413, 412627145, 546452165, 577678003, 1189337065, 2888390015, 4043746021, 20218730105]

約数ペア:

[(1, 20218730105), (5, 4043746021), (7, 2888390015), (17, 1189337065), (35, 577678003), (37, 546452165), (49, 412627145), (85, 237867413), (119, 169905295), (185, 109290433), (245, 82525429), (259, 78064595), (343, 58946735), (595, 33981059), (629, 32144245), (833, 24272185), (1295, 15612919), (1715, 11789347), (1813, 11152085), (3145, 6428849), (4165, 4854437), (4403, 4592035), (5831, 3467455), (9065, 2230417), (12691, 1593155), (18743, 1078735), (22015, 918407), (29155, 693491), (30821, 656005), (63455, 318631), (93715, 215747), (131201, 154105)]