20189124

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{659}}^1$

素因数の和:729

約数の個数: 72

約数和(自身を含む): 54774720

約数和(自身を除く): 34585596

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 37, 46, 69, 74, 92, 111, 138, 148, 207, 222, 276, 333, 414, 444, 659, 666, 828, 851, 1318, 1332, 1702, 1977, 2553, 2636, 3404, 3954, 5106, 5931, 7659, 7908, 10212, 11862, 15157, 15318, 23724, 24383, 30314, 30636, 45471, 48766, 60628, 73149, 90942, 97532, 136413, 146298, 181884, 219447, 272826, 292596, 438894, 545652, 560809, 877788, 1121618, 1682427, 2243236, 3364854, 5047281, 6729708, 10094562, 20189124]

約数ペア:

[(1, 20189124), (2, 10094562), (3, 6729708), (4, 5047281), (6, 3364854), (9, 2243236), (12, 1682427), (18, 1121618), (23, 877788), (36, 560809), (37, 545652), (46, 438894), (69, 292596), (74, 272826), (92, 219447), (111, 181884), (138, 146298), (148, 136413), (207, 97532), (222, 90942), (276, 73149), (333, 60628), (414, 48766), (444, 45471), (659, 30636), (666, 30314), (828, 24383), (851, 23724), (1318, 15318), (1332, 15157), (1702, 11862), (1977, 10212), (2553, 7908), (2636, 7659), (3404, 5931), (3954, 5106)]