8611720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16561}}^1$

素因数の和:16585

約数の個数: 32

約数和(自身を含む): 20868120

約数和(自身を除く): 12256400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 16561, 33122, 66244, 82805, 132488, 165610, 215293, 331220, 430586, 662440, 861172, 1076465, 1722344, 2152930, 4305860, 8611720]

約数ペア:

[(1, 8611720), (2, 4305860), (4, 2152930), (5, 1722344), (8, 1076465), (10, 861172), (13, 662440), (20, 430586), (26, 331220), (40, 215293), (52, 165610), (65, 132488), (104, 82805), (130, 66244), (260, 33122), (520, 16561)]