18793702798

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{263}}^1\times {\mathrm{3989}}^1$

素因数の和:4333

約数の個数: 48

約数和(自身を含む): 31227910560

約数和(自身を除く): 12434207762

約数列:

[1, 2, 13, 26, 53, 106, 169, 263, 338, 526, 689, 1378, 3419, 3989, 6838, 7978, 8957, 13939, 17914, 27878, 44447, 51857, 88894, 103714, 181207, 211417, 362414, 422834, 674141, 1049107, 1348282, 2098214, 2355691, 2748421, 4711382, 5496842, 13638391, 27276782, 35729473, 55602671, 71458946, 111205342, 177299083, 354598166, 722834723, 1445669446, 9396851399, 18793702798]

約数ペア:

[(1, 18793702798), (2, 9396851399), (13, 1445669446), (26, 722834723), (53, 354598166), (106, 177299083), (169, 111205342), (263, 71458946), (338, 55602671), (526, 35729473), (689, 27276782), (1378, 13638391), (3419, 5496842), (3989, 4711382), (6838, 2748421), (7978, 2355691), (8957, 2098214), (13939, 1348282), (17914, 1049107), (27878, 674141), (44447, 422834), (51857, 362414), (88894, 211417), (103714, 181207)]