20193558545

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{4421}}^1$

素因数の和:4598

約数の個数: 48

約数和(自身を含む): 26879569200

約数和(自身を除く): 6686010655

約数列:

[1, 5, 17, 29, 85, 109, 145, 289, 493, 545, 1445, 1853, 2465, 3161, 4421, 8381, 9265, 15805, 22105, 31501, 41905, 53737, 75157, 128209, 157505, 268685, 375785, 481889, 641045, 913529, 1277669, 2179553, 2409445, 4567645, 6388345, 8192113, 10897765, 13974781, 37052401, 40960565, 69873905, 139265921, 185262005, 237571277, 696329605, 1187856385, 4038711709, 20193558545]

約数ペア:

[(1, 20193558545), (5, 4038711709), (17, 1187856385), (29, 696329605), (85, 237571277), (109, 185262005), (145, 139265921), (289, 69873905), (493, 40960565), (545, 37052401), (1445, 13974781), (1853, 10897765), (2465, 8192113), (3161, 6388345), (4421, 4567645), (8381, 2409445), (9265, 2179553), (15805, 1277669), (22105, 913529), (31501, 641045), (41905, 481889), (53737, 375785), (75157, 268685), (128209, 157505)]