20728165784

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{619}}^1\times {\mathrm{40639}}^1$

素因数の和:41367

約数の個数: 32

約数和(自身を含む): 39307008000

約数和(自身を除く): 18578842216

約数列:

[1, 2, 4, 8, 103, 206, 412, 619, 824, 1238, 2476, 4952, 40639, 63757, 81278, 127514, 162556, 255028, 325112, 510056, 4185817, 8371634, 16743268, 25155541, 33486536, 50311082, 100622164, 201244328, 2591020723, 5182041446, 10364082892, 20728165784]

約数ペア:

[(1, 20728165784), (2, 10364082892), (4, 5182041446), (8, 2591020723), (103, 201244328), (206, 100622164), (412, 50311082), (619, 33486536), (824, 25155541), (1238, 16743268), (2476, 8371634), (4952, 4185817), (40639, 510056), (63757, 325112), (81278, 255028), (127514, 162556)]