27728260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6389}}^1$

素因数の和:6436

約数の個数: 48

約数和(自身を含む): 68705280

約数和(自身を除く): 40977020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 6389, 12778, 25556, 31945, 44723, 63890, 89446, 127780, 178892, 198059, 223615, 396118, 447230, 792236, 894460, 990295, 1386413, 1980590, 2772826, 3961180, 5545652, 6932065, 13864130, 27728260]

約数ペア:

[(1, 27728260), (2, 13864130), (4, 6932065), (5, 5545652), (7, 3961180), (10, 2772826), (14, 1980590), (20, 1386413), (28, 990295), (31, 894460), (35, 792236), (62, 447230), (70, 396118), (124, 223615), (140, 198059), (155, 178892), (217, 127780), (310, 89446), (434, 63890), (620, 44723), (868, 31945), (1085, 25556), (2170, 12778), (4340, 6389)]