20020628

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 39118464

約数和(自身を除く): 19097836

約数列:

[1, 2, 4, 17, 34, 41, 43, 68, 82, 86, 164, 167, 172, 334, 668, 697, 731, 1394, 1462, 1763, 2788, 2839, 2924, 3526, 5678, 6847, 7052, 7181, 11356, 13694, 14362, 27388, 28724, 29971, 59942, 116399, 119884, 122077, 232798, 244154, 294421, 465596, 488308, 588842, 1177684, 5005157, 10010314, 20020628]

約数ペア:

[(1, 20020628), (2, 10010314), (4, 5005157), (17, 1177684), (34, 588842), (41, 488308), (43, 465596), (68, 294421), (82, 244154), (86, 232798), (164, 122077), (167, 119884), (172, 116399), (334, 59942), (668, 29971), (697, 28724), (731, 27388), (1394, 14362), (1462, 13694), (1763, 11356), (2788, 7181), (2839, 7052), (2924, 6847), (3526, 5678)]