18339680

素因数分解:

$2^5\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1381}}^1$

素因数の和:1479

約数の個数: 48

約数和(自身を含む): 43881264

約数和(自身を除く): 25541584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 83, 160, 166, 332, 415, 664, 830, 1328, 1381, 1660, 2656, 2762, 3320, 5524, 6640, 6905, 11048, 13280, 13810, 22096, 27620, 44192, 55240, 110480, 114623, 220960, 229246, 458492, 573115, 916984, 1146230, 1833968, 2292460, 3667936, 4584920, 9169840, 18339680]

約数ペア:

[(1, 18339680), (2, 9169840), (4, 4584920), (5, 3667936), (8, 2292460), (10, 1833968), (16, 1146230), (20, 916984), (32, 573115), (40, 458492), (80, 229246), (83, 220960), (160, 114623), (166, 110480), (332, 55240), (415, 44192), (664, 27620), (830, 22096), (1328, 13810), (1381, 13280), (1660, 11048), (2656, 6905), (2762, 6640), (3320, 5524)]