1640389972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{8243}}^1$

素因数の和:8392

約数の個数: 48

約数和(自身を含む): 3199331520

約数和(自身を除く): 1558941548

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 89, 172, 178, 356, 559, 1118, 1157, 2236, 2314, 3827, 4628, 7654, 8243, 15308, 16486, 32972, 49751, 99502, 107159, 199004, 214318, 354449, 428636, 708898, 733627, 1417796, 1467254, 2934508, 4607837, 9215674, 9537151, 18431348, 19074302, 31545961, 38148604, 63091922, 126183844, 410097493, 820194986, 1640389972]

約数ペア:

[(1, 1640389972), (2, 820194986), (4, 410097493), (13, 126183844), (26, 63091922), (43, 38148604), (52, 31545961), (86, 19074302), (89, 18431348), (172, 9537151), (178, 9215674), (356, 4607837), (559, 2934508), (1118, 1467254), (1157, 1417796), (2236, 733627), (2314, 708898), (3827, 428636), (4628, 354449), (7654, 214318), (8243, 199004), (15308, 107159), (16486, 99502), (32972, 49751)]