27981604

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{353}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 59472000

約数和(自身を除く): 31490396

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 149, 266, 298, 353, 532, 596, 706, 1043, 1412, 2086, 2471, 2831, 4172, 4942, 5662, 6707, 9884, 11324, 13414, 19817, 26828, 39634, 46949, 52597, 79268, 93898, 105194, 187796, 210388, 368179, 736358, 999343, 1472716, 1998686, 3997372, 6995401, 13990802, 27981604]

約数ペア:

[(1, 27981604), (2, 13990802), (4, 6995401), (7, 3997372), (14, 1998686), (19, 1472716), (28, 999343), (38, 736358), (76, 368179), (133, 210388), (149, 187796), (266, 105194), (298, 93898), (353, 79268), (532, 52597), (596, 46949), (706, 39634), (1043, 26828), (1412, 19817), (2086, 13414), (2471, 11324), (2831, 9884), (4172, 6707), (4942, 5662)]