20047204

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 38993920

約数和(自身を除く): 18946716

約数列:

[1, 2, 4, 19, 31, 38, 62, 67, 76, 124, 127, 134, 254, 268, 508, 589, 1178, 1273, 2077, 2356, 2413, 2546, 3937, 4154, 4826, 5092, 7874, 8308, 8509, 9652, 15748, 17018, 34036, 39463, 74803, 78926, 149606, 157852, 161671, 263779, 299212, 323342, 527558, 646684, 1055116, 5011801, 10023602, 20047204]

約数ペア:

[(1, 20047204), (2, 10023602), (4, 5011801), (19, 1055116), (31, 646684), (38, 527558), (62, 323342), (67, 299212), (76, 263779), (124, 161671), (127, 157852), (134, 149606), (254, 78926), (268, 74803), (508, 39463), (589, 34036), (1178, 17018), (1273, 15748), (2077, 9652), (2356, 8509), (2413, 8308), (2546, 7874), (3937, 5092), (4154, 4826)]