18551590

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 37791360

約数和(自身を除く): 19239770

約数列:

[1, 2, 5, 10, 17, 29, 34, 53, 58, 71, 85, 106, 142, 145, 170, 265, 290, 355, 493, 530, 710, 901, 986, 1207, 1537, 1802, 2059, 2414, 2465, 3074, 3763, 4118, 4505, 4930, 6035, 7526, 7685, 9010, 10295, 12070, 15370, 18815, 20590, 26129, 35003, 37630, 52258, 63971, 70006, 109127, 127942, 130645, 175015, 218254, 261290, 319855, 350030, 545635, 639710, 1091270, 1855159, 3710318, 9275795, 18551590]

約数ペア:

[(1, 18551590), (2, 9275795), (5, 3710318), (10, 1855159), (17, 1091270), (29, 639710), (34, 545635), (53, 350030), (58, 319855), (71, 261290), (85, 218254), (106, 175015), (142, 130645), (145, 127942), (170, 109127), (265, 70006), (290, 63971), (355, 52258), (493, 37630), (530, 35003), (710, 26129), (901, 20590), (986, 18815), (1207, 15370), (1537, 12070), (1802, 10295), (2059, 9010), (2414, 7685), (2465, 7526), (3074, 6035), (3763, 4930), (4118, 4505)]