78391740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{186647}}^1$

素因数の和:186666

約数の個数: 48

約数和(自身を含む): 250854912

約数和(自身を除く): 172463172

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 186647, 373294, 559941, 746588, 933235, 1119882, 1306529, 1866470, 2239764, 2613058, 2799705, 3732940, 3919587, 5226116, 5599410, 6532645, 7839174, 11198820, 13065290, 15678348, 19597935, 26130580, 39195870, 78391740]

約数ペア:

[(1, 78391740), (2, 39195870), (3, 26130580), (4, 19597935), (5, 15678348), (6, 13065290), (7, 11198820), (10, 7839174), (12, 6532645), (14, 5599410), (15, 5226116), (20, 3919587), (21, 3732940), (28, 2799705), (30, 2613058), (35, 2239764), (42, 1866470), (60, 1306529), (70, 1119882), (84, 933235), (105, 746588), (140, 559941), (210, 373294), (420, 186647)]