261539104

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{2887}}^1$

素因数の和:3065

約数の個数: 48

約数和(自身を含む): 545832000

約数和(自身を除く): 284292896

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 149, 152, 298, 304, 596, 608, 1192, 2384, 2831, 2887, 4768, 5662, 5774, 11324, 11548, 22648, 23096, 45296, 46192, 54853, 90592, 92384, 109706, 219412, 430163, 438824, 860326, 877648, 1720652, 1755296, 3441304, 6882608, 8173097, 13765216, 16346194, 32692388, 65384776, 130769552, 261539104]

約数ペア:

[(1, 261539104), (2, 130769552), (4, 65384776), (8, 32692388), (16, 16346194), (19, 13765216), (32, 8173097), (38, 6882608), (76, 3441304), (149, 1755296), (152, 1720652), (298, 877648), (304, 860326), (596, 438824), (608, 430163), (1192, 219412), (2384, 109706), (2831, 92384), (2887, 90592), (4768, 54853), (5662, 46192), (5774, 45296), (11324, 23096), (11548, 22648)]