7808080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 21141504

約数和(自身を除く): 13333424

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 191, 280, 292, 365, 382, 511, 560, 584, 730, 764, 955, 1022, 1168, 1337, 1460, 1528, 1910, 2044, 2555, 2674, 2920, 3056, 3820, 4088, 5110, 5348, 5840, 6685, 7640, 8176, 10220, 10696, 13370, 13943, 15280, 20440, 21392, 26740, 27886, 40880, 53480, 55772, 69715, 97601, 106960, 111544, 139430, 195202, 223088, 278860, 390404, 488005, 557720, 780808, 976010, 1115440, 1561616, 1952020, 3904040, 7808080]

約数ペア:

[(1, 7808080), (2, 3904040), (4, 1952020), (5, 1561616), (7, 1115440), (8, 976010), (10, 780808), (14, 557720), (16, 488005), (20, 390404), (28, 278860), (35, 223088), (40, 195202), (56, 139430), (70, 111544), (73, 106960), (80, 97601), (112, 69715), (140, 55772), (146, 53480), (191, 40880), (280, 27886), (292, 26740), (365, 21392), (382, 20440), (511, 15280), (560, 13943), (584, 13370), (730, 10696), (764, 10220), (955, 8176), (1022, 7640), (1168, 6685), (1337, 5840), (1460, 5348), (1528, 5110), (1910, 4088), (2044, 3820), (2555, 3056), (2674, 2920)]