28409745

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1601}}^1$

素因数の和:1642

約数の個数: 48

約数和(自身を含む): 56287872

約数和(自身を除く): 27878127

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 169, 195, 273, 455, 507, 845, 1183, 1365, 1601, 2535, 3549, 4803, 5915, 8005, 11207, 17745, 20813, 24015, 33621, 56035, 62439, 104065, 145691, 168105, 270569, 312195, 437073, 728455, 811707, 1352845, 1893983, 2185365, 4058535, 5681949, 9469915, 28409745]

約数ペア:

[(1, 28409745), (3, 9469915), (5, 5681949), (7, 4058535), (13, 2185365), (15, 1893983), (21, 1352845), (35, 811707), (39, 728455), (65, 437073), (91, 312195), (105, 270569), (169, 168105), (195, 145691), (273, 104065), (455, 62439), (507, 56035), (845, 33621), (1183, 24015), (1365, 20813), (1601, 17745), (2535, 11207), (3549, 8005), (4803, 5915)]