25181858

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:402

約数の個数: 32

約数和(自身を含む): 42470400

約数和(自身を除く): 17288542

約数列:

[1, 2, 13, 26, 31, 62, 157, 199, 314, 398, 403, 806, 2041, 2587, 4082, 4867, 5174, 6169, 9734, 12338, 31243, 62486, 63271, 80197, 126542, 160394, 406159, 812318, 968533, 1937066, 12590929, 25181858]

約数ペア:

[(1, 25181858), (2, 12590929), (13, 1937066), (26, 968533), (31, 812318), (62, 406159), (157, 160394), (199, 126542), (314, 80197), (398, 63271), (403, 62486), (806, 31243), (2041, 12338), (2587, 9734), (4082, 6169), (4867, 5174)]