208786900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{461}}^1\times {\mathrm{647}}^1$

素因数の和:1129

約数の個数: 72

約数和(自身を含む): 519716736

約数和(自身を除く): 310929836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 461, 647, 700, 922, 1294, 1844, 2305, 2588, 3227, 3235, 4529, 4610, 6454, 6470, 9058, 9220, 11525, 12908, 12940, 16135, 16175, 18116, 22645, 23050, 32270, 32350, 45290, 46100, 64540, 64700, 80675, 90580, 113225, 161350, 226450, 298267, 322700, 452900, 596534, 1193068, 1491335, 2087869, 2982670, 4175738, 5965340, 7456675, 8351476, 10439345, 14913350, 20878690, 29826700, 41757380, 52196725, 104393450, 208786900]

約数ペア:

[(1, 208786900), (2, 104393450), (4, 52196725), (5, 41757380), (7, 29826700), (10, 20878690), (14, 14913350), (20, 10439345), (25, 8351476), (28, 7456675), (35, 5965340), (50, 4175738), (70, 2982670), (100, 2087869), (140, 1491335), (175, 1193068), (350, 596534), (461, 452900), (647, 322700), (700, 298267), (922, 226450), (1294, 161350), (1844, 113225), (2305, 90580), (2588, 80675), (3227, 64700), (3235, 64540), (4529, 46100), (4610, 45290), (6454, 32350), (6470, 32270), (9058, 23050), (9220, 22645), (11525, 18116), (12908, 16175), (12940, 16135)]