20154122008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{641}}^1\times {\mathrm{126781}}^1$

素因数の和:127459

約数の個数: 32

約数和(自身を含む): 39069141120

約数和(自身を除く): 18915019112

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 641, 1282, 2564, 5128, 19871, 39742, 79484, 126781, 158968, 253562, 507124, 1014248, 3930211, 7860422, 15720844, 31441688, 81266621, 162533242, 325066484, 650132968, 2519265251, 5038530502, 10077061004, 20154122008]

約数ペア:

[(1, 20154122008), (2, 10077061004), (4, 5038530502), (8, 2519265251), (31, 650132968), (62, 325066484), (124, 162533242), (248, 81266621), (641, 31441688), (1282, 15720844), (2564, 7860422), (5128, 3930211), (19871, 1014248), (39742, 507124), (79484, 253562), (126781, 158968)]