257982062

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{967}}^1$

素因数の和:1344

約数の個数: 32

約数和(自身を含む): 431929344

約数和(自身を除く): 173947282

約数列:

[1, 2, 13, 26, 31, 62, 331, 403, 662, 806, 967, 1934, 4303, 8606, 10261, 12571, 20522, 25142, 29977, 59954, 133393, 266786, 320077, 389701, 640154, 779402, 4161001, 8322002, 9922387, 19844774, 128991031, 257982062]

約数ペア:

[(1, 257982062), (2, 128991031), (13, 19844774), (26, 9922387), (31, 8322002), (62, 4161001), (331, 779402), (403, 640154), (662, 389701), (806, 320077), (967, 266786), (1934, 133393), (4303, 59954), (8606, 29977), (10261, 25142), (12571, 20522)]