161521408

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{20353}}^1$

素因数の和:20400

約数の個数: 36

約数和(自身を含む): 332828608

約数和(自身を除く): 171307200

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 3968, 7936, 20353, 40706, 81412, 162824, 325648, 630943, 651296, 1261886, 1302592, 2523772, 2605184, 5047544, 5210368, 10095088, 20190176, 40380352, 80760704, 161521408]

約数ペア:

[(1, 161521408), (2, 80760704), (4, 40380352), (8, 20190176), (16, 10095088), (31, 5210368), (32, 5047544), (62, 2605184), (64, 2523772), (124, 1302592), (128, 1261886), (248, 651296), (256, 630943), (496, 325648), (992, 162824), (1984, 81412), (3968, 40706), (7936, 20353)]