20115642

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 43781472

約数和(自身を除く): 23665830

約数列:

[1, 2, 3, 6, 19, 37, 38, 57, 74, 111, 114, 222, 251, 361, 502, 703, 722, 753, 1083, 1406, 1506, 2109, 2166, 4218, 4769, 9287, 9538, 13357, 14307, 18574, 26714, 27861, 28614, 40071, 55722, 80142, 90611, 176453, 181222, 271833, 352906, 529359, 543666, 1058718, 3352607, 6705214, 10057821, 20115642]

約数ペア:

[(1, 20115642), (2, 10057821), (3, 6705214), (6, 3352607), (19, 1058718), (37, 543666), (38, 529359), (57, 352906), (74, 271833), (111, 181222), (114, 176453), (222, 90611), (251, 80142), (361, 55722), (502, 40071), (703, 28614), (722, 27861), (753, 26714), (1083, 18574), (1406, 14307), (1506, 13357), (2109, 9538), (2166, 9287), (4218, 4769)]