66439720

素因数分解:

$2^3\times 5^1\times {\mathrm{593}}^1\times {\mathrm{2801}}^1$

素因数の和:3405

約数の個数: 32

約数和(自身を含む): 149794920

約数和(自身を除く): 83355200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 593, 1186, 2372, 2801, 2965, 4744, 5602, 5930, 11204, 11860, 14005, 22408, 23720, 28010, 56020, 112040, 1660993, 3321986, 6643972, 8304965, 13287944, 16609930, 33219860, 66439720]

約数ペア:

[(1, 66439720), (2, 33219860), (4, 16609930), (5, 13287944), (8, 8304965), (10, 6643972), (20, 3321986), (40, 1660993), (593, 112040), (1186, 56020), (2372, 28010), (2801, 23720), (2965, 22408), (4744, 14005), (5602, 11860), (5930, 11204)]