64763240

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{19507}}^1$

素因数の和:19601

約数の個数: 32

約数和(自身を含む): 147480480

約数和(自身を除く): 82717240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 19507, 39014, 78028, 97535, 156056, 195070, 390140, 780280, 1619081, 3238162, 6476324, 8095405, 12952648, 16190810, 32381620, 64763240]

約数ペア:

[(1, 64763240), (2, 32381620), (4, 16190810), (5, 12952648), (8, 8095405), (10, 6476324), (20, 3238162), (40, 1619081), (83, 780280), (166, 390140), (332, 195070), (415, 156056), (664, 97535), (830, 78028), (1660, 39014), (3320, 19507)]