265291280

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{8353}}^1$

素因数の和:8763

約数の個数: 40

約数和(自身を含む): 618429912

約数和(自身を除く): 353138632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 3176, 3970, 6352, 7940, 8353, 15880, 16706, 31760, 33412, 41765, 66824, 83530, 133648, 167060, 334120, 668240, 3316141, 6632282, 13264564, 16580705, 26529128, 33161410, 53058256, 66322820, 132645640, 265291280]

約数ペア:

[(1, 265291280), (2, 132645640), (4, 66322820), (5, 53058256), (8, 33161410), (10, 26529128), (16, 16580705), (20, 13264564), (40, 6632282), (80, 3316141), (397, 668240), (794, 334120), (1588, 167060), (1985, 133648), (3176, 83530), (3970, 66824), (6352, 41765), (7940, 33412), (8353, 31760), (15880, 16706)]