157215128

素因数分解:

$2^3\times 7^2\times {\mathrm{389}}^1\times {\mathrm{1031}}^1$

素因数の和:1440

約数の個数: 48

約数和(自身を含む): 344120400

約数和(自身を除く): 186905272

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 389, 392, 778, 1031, 1556, 2062, 2723, 3112, 4124, 5446, 7217, 8248, 10892, 14434, 19061, 21784, 28868, 38122, 50519, 57736, 76244, 101038, 152488, 202076, 401059, 404152, 802118, 1604236, 2807413, 3208472, 5614826, 11229652, 19651891, 22459304, 39303782, 78607564, 157215128]

約数ペア:

[(1, 157215128), (2, 78607564), (4, 39303782), (7, 22459304), (8, 19651891), (14, 11229652), (28, 5614826), (49, 3208472), (56, 2807413), (98, 1604236), (196, 802118), (389, 404152), (392, 401059), (778, 202076), (1031, 152488), (1556, 101038), (2062, 76244), (2723, 57736), (3112, 50519), (4124, 38122), (5446, 28868), (7217, 21784), (8248, 19061), (10892, 14434)]