25559020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 55248480

約数和(自身を除く): 29689460

約数列:

[1, 2, 4, 5, 10, 20, 83, 89, 166, 173, 178, 332, 346, 356, 415, 445, 692, 830, 865, 890, 1660, 1730, 1780, 3460, 7387, 14359, 14774, 15397, 28718, 29548, 30794, 36935, 57436, 61588, 71795, 73870, 76985, 143590, 147740, 153970, 287180, 307940, 1277951, 2555902, 5111804, 6389755, 12779510, 25559020]

約数ペア:

[(1, 25559020), (2, 12779510), (4, 6389755), (5, 5111804), (10, 2555902), (20, 1277951), (83, 307940), (89, 287180), (166, 153970), (173, 147740), (178, 143590), (332, 76985), (346, 73870), (356, 71795), (415, 61588), (445, 57436), (692, 36935), (830, 30794), (865, 29548), (890, 28718), (1660, 15397), (1730, 14774), (1780, 14359), (3460, 7387)]