64407820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{859}}^1$

素因数の和:1054

約数の個数: 48

約数和(自身を含む): 142168320

約数和(自身を除く): 77760500

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 163, 230, 326, 460, 652, 815, 859, 1630, 1718, 3260, 3436, 3749, 4295, 7498, 8590, 14996, 17180, 18745, 19757, 37490, 39514, 74980, 79028, 98785, 140017, 197570, 280034, 395140, 560068, 700085, 1400170, 2800340, 3220391, 6440782, 12881564, 16101955, 32203910, 64407820]

約数ペア:

[(1, 64407820), (2, 32203910), (4, 16101955), (5, 12881564), (10, 6440782), (20, 3220391), (23, 2800340), (46, 1400170), (92, 700085), (115, 560068), (163, 395140), (230, 280034), (326, 197570), (460, 140017), (652, 98785), (815, 79028), (859, 74980), (1630, 39514), (1718, 37490), (3260, 19757), (3436, 18745), (3749, 17180), (4295, 14996), (7498, 8590)]