20054988

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{457}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 54014688

約数和(自身を除く): 33959700

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 53, 69, 92, 106, 138, 159, 207, 212, 276, 318, 414, 457, 477, 636, 828, 914, 954, 1219, 1371, 1828, 1908, 2438, 2742, 3657, 4113, 4876, 5484, 7314, 8226, 10511, 10971, 14628, 16452, 21022, 21942, 24221, 31533, 42044, 43884, 48442, 63066, 72663, 94599, 96884, 126132, 145326, 189198, 217989, 290652, 378396, 435978, 557083, 871956, 1114166, 1671249, 2228332, 3342498, 5013747, 6684996, 10027494, 20054988]

約数ペア:

[(1, 20054988), (2, 10027494), (3, 6684996), (4, 5013747), (6, 3342498), (9, 2228332), (12, 1671249), (18, 1114166), (23, 871956), (36, 557083), (46, 435978), (53, 378396), (69, 290652), (92, 217989), (106, 189198), (138, 145326), (159, 126132), (207, 96884), (212, 94599), (276, 72663), (318, 63066), (414, 48442), (457, 43884), (477, 42044), (636, 31533), (828, 24221), (914, 21942), (954, 21022), (1219, 16452), (1371, 14628), (1828, 10971), (1908, 10511), (2438, 8226), (2742, 7314), (3657, 5484), (4113, 4876)]