155519980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{100987}}^1$

素因数の和:101014

約数の個数: 48

約数和(自身を含む): 407183616

約数和(自身を除く): 251663636

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 100987, 201974, 403948, 504935, 706909, 1009870, 1110857, 1413818, 2019740, 2221714, 2827636, 3534545, 4443428, 5554285, 7069090, 7775999, 11108570, 14138180, 15551998, 22217140, 31103996, 38879995, 77759990, 155519980]

約数ペア:

[(1, 155519980), (2, 77759990), (4, 38879995), (5, 31103996), (7, 22217140), (10, 15551998), (11, 14138180), (14, 11108570), (20, 7775999), (22, 7069090), (28, 5554285), (35, 4443428), (44, 3534545), (55, 2827636), (70, 2221714), (77, 2019740), (110, 1413818), (140, 1110857), (154, 1009870), (220, 706909), (308, 504935), (385, 403948), (770, 201974), (1540, 100987)]