65984920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{27043}}^1$

素因数の和:27115

約数の個数: 32

約数和(自身を含む): 150905520

約数和(自身を除く): 84920600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 27043, 54086, 108172, 135215, 216344, 270430, 540860, 1081720, 1649623, 3299246, 6598492, 8248115, 13196984, 16496230, 32992460, 65984920]

約数ペア:

[(1, 65984920), (2, 32992460), (4, 16496230), (5, 13196984), (8, 8248115), (10, 6598492), (20, 3299246), (40, 1649623), (61, 1081720), (122, 540860), (244, 270430), (305, 216344), (488, 135215), (610, 108172), (1220, 54086), (2440, 27043)]