156968720

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{383}}^1$

素因数の和:552

約数の個数: 80

約数和(自身を含む): 377118720

約数和(自身を除く): 220150000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 109, 188, 218, 235, 376, 383, 436, 470, 545, 752, 766, 872, 940, 1090, 1532, 1744, 1880, 1915, 2180, 3064, 3760, 3830, 4360, 5123, 6128, 7660, 8720, 10246, 15320, 18001, 20492, 25615, 30640, 36002, 40984, 41747, 51230, 72004, 81968, 83494, 90005, 102460, 144008, 166988, 180010, 204920, 208735, 288016, 333976, 360020, 409840, 417470, 667952, 720040, 834940, 1440080, 1669880, 1962109, 3339760, 3924218, 7848436, 9810545, 15696872, 19621090, 31393744, 39242180, 78484360, 156968720]

約数ペア:

[(1, 156968720), (2, 78484360), (4, 39242180), (5, 31393744), (8, 19621090), (10, 15696872), (16, 9810545), (20, 7848436), (40, 3924218), (47, 3339760), (80, 1962109), (94, 1669880), (109, 1440080), (188, 834940), (218, 720040), (235, 667952), (376, 417470), (383, 409840), (436, 360020), (470, 333976), (545, 288016), (752, 208735), (766, 204920), (872, 180010), (940, 166988), (1090, 144008), (1532, 102460), (1744, 90005), (1880, 83494), (1915, 81968), (2180, 72004), (3064, 51230), (3760, 41747), (3830, 40984), (4360, 36002), (5123, 30640), (6128, 25615), (7660, 20492), (8720, 18001), (10246, 15320)]