406900520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{782501}}^1$

素因数の和:782525

約数の個数: 32

約数和(自身を含む): 985952520

約数和(自身を除く): 579052000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 782501, 1565002, 3130004, 3912505, 6260008, 7825010, 10172513, 15650020, 20345026, 31300040, 40690052, 50862565, 81380104, 101725130, 203450260, 406900520]

約数ペア:

[(1, 406900520), (2, 203450260), (4, 101725130), (5, 81380104), (8, 50862565), (10, 40690052), (13, 31300040), (20, 20345026), (26, 15650020), (40, 10172513), (52, 7825010), (65, 6260008), (104, 3912505), (130, 3130004), (260, 1565002), (520, 782501)]