20598220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1289}}^1$

素因数の和:1362

約数の個数: 48

約数和(自身を含む): 46811520

約数和(自身を除く): 26213300

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1289, 1598, 2578, 3196, 3995, 5156, 6445, 7990, 12890, 15980, 21913, 25780, 43826, 60583, 87652, 109565, 121166, 219130, 242332, 302915, 438260, 605830, 1029911, 1211660, 2059822, 4119644, 5149555, 10299110, 20598220]

約数ペア:

[(1, 20598220), (2, 10299110), (4, 5149555), (5, 4119644), (10, 2059822), (17, 1211660), (20, 1029911), (34, 605830), (47, 438260), (68, 302915), (85, 242332), (94, 219130), (170, 121166), (188, 109565), (235, 87652), (340, 60583), (470, 43826), (799, 25780), (940, 21913), (1289, 15980), (1598, 12890), (2578, 7990), (3196, 6445), (3995, 5156)]