281959696

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{1889}}^1$

素因数の和:2407

約数の個数: 40

約数和(自身を含む): 576525600

約数和(自身を除く): 294565904

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 491, 982, 1889, 1964, 3778, 3928, 7556, 7856, 9329, 15112, 18658, 30224, 35891, 37316, 71782, 74632, 143564, 149264, 287128, 574256, 927499, 1854998, 3709996, 7419992, 14839984, 17622481, 35244962, 70489924, 140979848, 281959696]

約数ペア:

[(1, 281959696), (2, 140979848), (4, 70489924), (8, 35244962), (16, 17622481), (19, 14839984), (38, 7419992), (76, 3709996), (152, 1854998), (304, 927499), (491, 574256), (982, 287128), (1889, 149264), (1964, 143564), (3778, 74632), (3928, 71782), (7556, 37316), (7856, 35891), (9329, 30224), (15112, 18658)]