20806240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1429}}^1$

素因数の和:1464

約数の個数: 96

約数和(自身を含む): 60540480

約数和(自身を除く): 39734240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 364, 416, 455, 520, 560, 728, 910, 1040, 1120, 1429, 1456, 1820, 2080, 2858, 2912, 3640, 5716, 7145, 7280, 10003, 11432, 14290, 14560, 18577, 20006, 22864, 28580, 37154, 40012, 45728, 50015, 57160, 74308, 80024, 92885, 100030, 114320, 130039, 148616, 160048, 185770, 200060, 228640, 260078, 297232, 320096, 371540, 400120, 520156, 594464, 650195, 743080, 800240, 1040312, 1300390, 1486160, 1600480, 2080624, 2600780, 2972320, 4161248, 5201560, 10403120, 20806240]

約数ペア:

[(1, 20806240), (2, 10403120), (4, 5201560), (5, 4161248), (7, 2972320), (8, 2600780), (10, 2080624), (13, 1600480), (14, 1486160), (16, 1300390), (20, 1040312), (26, 800240), (28, 743080), (32, 650195), (35, 594464), (40, 520156), (52, 400120), (56, 371540), (65, 320096), (70, 297232), (80, 260078), (91, 228640), (104, 200060), (112, 185770), (130, 160048), (140, 148616), (160, 130039), (182, 114320), (208, 100030), (224, 92885), (260, 80024), (280, 74308), (364, 57160), (416, 50015), (455, 45728), (520, 40012), (560, 37154), (728, 28580), (910, 22864), (1040, 20006), (1120, 18577), (1429, 14560), (1456, 14290), (1820, 11432), (2080, 10003), (2858, 7280), (2912, 7145), (3640, 5716)]