72428720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9949}}^1$

素因数の和:9982

約数の個数: 80

約数和(自身を含む): 207278400

約数和(自身を除く): 134849680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 9949, 19898, 39796, 49745, 69643, 79592, 99490, 129337, 139286, 159184, 198980, 258674, 278572, 348215, 397960, 517348, 557144, 646685, 696430, 795920, 905359, 1034696, 1114288, 1293370, 1392860, 1810718, 2069392, 2586740, 2785720, 3621436, 4526795, 5173480, 5571440, 7242872, 9053590, 10346960, 14485744, 18107180, 36214360, 72428720]

約数ペア:

[(1, 72428720), (2, 36214360), (4, 18107180), (5, 14485744), (7, 10346960), (8, 9053590), (10, 7242872), (13, 5571440), (14, 5173480), (16, 4526795), (20, 3621436), (26, 2785720), (28, 2586740), (35, 2069392), (40, 1810718), (52, 1392860), (56, 1293370), (65, 1114288), (70, 1034696), (80, 905359), (91, 795920), (104, 696430), (112, 646685), (130, 557144), (140, 517348), (182, 397960), (208, 348215), (260, 278572), (280, 258674), (364, 198980), (455, 159184), (520, 139286), (560, 129337), (728, 99490), (910, 79592), (1040, 69643), (1456, 49745), (1820, 39796), (3640, 19898), (7280, 9949)]