209719305

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{577}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 374918544

約数和(自身を除く): 165199239

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 197, 205, 369, 577, 591, 615, 985, 1731, 1773, 1845, 2885, 2955, 5193, 8077, 8655, 8865, 23657, 24231, 25965, 40385, 70971, 72693, 113669, 118285, 121155, 212913, 341007, 354855, 363465, 568345, 1023021, 1064565, 1705035, 4660429, 5115105, 13981287, 23302145, 41943861, 69906435, 209719305]

約数ペア:

[(1, 209719305), (3, 69906435), (5, 41943861), (9, 23302145), (15, 13981287), (41, 5115105), (45, 4660429), (123, 1705035), (197, 1064565), (205, 1023021), (369, 568345), (577, 363465), (591, 354855), (615, 341007), (985, 212913), (1731, 121155), (1773, 118285), (1845, 113669), (2885, 72693), (2955, 70971), (5193, 40385), (8077, 25965), (8655, 24231), (8865, 23657)]