20490516

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 56689920

約数和(自身を除く): 36199404

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 73, 92, 108, 113, 138, 146, 207, 219, 226, 276, 292, 339, 414, 438, 452, 621, 657, 678, 828, 876, 1017, 1242, 1314, 1356, 1679, 1971, 2034, 2484, 2599, 2628, 3051, 3358, 3942, 4068, 5037, 5198, 6102, 6716, 7797, 7884, 8249, 10074, 10396, 12204, 15111, 15594, 16498, 20148, 23391, 24747, 30222, 31188, 32996, 45333, 46782, 49494, 60444, 70173, 74241, 90666, 93564, 98988, 140346, 148482, 181332, 189727, 222723, 280692, 296964, 379454, 445446, 569181, 758908, 890892, 1138362, 1707543, 2276724, 3415086, 5122629, 6830172, 10245258, 20490516]

約数ペア:

[(1, 20490516), (2, 10245258), (3, 6830172), (4, 5122629), (6, 3415086), (9, 2276724), (12, 1707543), (18, 1138362), (23, 890892), (27, 758908), (36, 569181), (46, 445446), (54, 379454), (69, 296964), (73, 280692), (92, 222723), (108, 189727), (113, 181332), (138, 148482), (146, 140346), (207, 98988), (219, 93564), (226, 90666), (276, 74241), (292, 70173), (339, 60444), (414, 49494), (438, 46782), (452, 45333), (621, 32996), (657, 31188), (678, 30222), (828, 24747), (876, 23391), (1017, 20148), (1242, 16498), (1314, 15594), (1356, 15111), (1679, 12204), (1971, 10396), (2034, 10074), (2484, 8249), (2599, 7884), (2628, 7797), (3051, 6716), (3358, 6102), (3942, 5198), (4068, 5037)]