77281436

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:642

約数の個数: 36

約数和(自身を含む): 144338040

約数和(自身を除く): 67056604

約数列:

[1, 2, 4, 19, 38, 76, 109, 218, 361, 436, 491, 722, 982, 1444, 1964, 2071, 4142, 8284, 9329, 18658, 37316, 39349, 53519, 78698, 107038, 157396, 177251, 214076, 354502, 709004, 1016861, 2033722, 4067444, 19320359, 38640718, 77281436]

約数ペア:

[(1, 77281436), (2, 38640718), (4, 19320359), (19, 4067444), (38, 2033722), (76, 1016861), (109, 709004), (218, 354502), (361, 214076), (436, 177251), (491, 157396), (722, 107038), (982, 78698), (1444, 53519), (1964, 39349), (2071, 37316), (4142, 18658), (8284, 9329)]