378702940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{245911}}^1$

素因数の和:245938

約数の個数: 48

約数和(自身を含む): 991517184

約数和(自身を除く): 612814244

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, 245911, 491822, 983644, 1229555, 1721377, 2459110, 2705021, 3442754, 4918220, 5410042, 6885508, 8606885, 10820084, 13525105, 17213770, 18935147, 27050210, 34427540, 37870294, 54100420, 75740588, 94675735, 189351470, 378702940]

約数ペア:

[(1, 378702940), (2, 189351470), (4, 94675735), (5, 75740588), (7, 54100420), (10, 37870294), (11, 34427540), (14, 27050210), (20, 18935147), (22, 17213770), (28, 13525105), (35, 10820084), (44, 8606885), (55, 6885508), (70, 5410042), (77, 4918220), (110, 3442754), (140, 2705021), (154, 2459110), (220, 1721377), (308, 1229555), (385, 983644), (770, 491822), (1540, 245911)]