139431460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1949}}^1$

素因数の和:2045

約数の個数: 72

約数和(自身を含む): 345454200

約数和(自身を除く): 206022740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 245, 292, 365, 490, 511, 730, 980, 1022, 1460, 1949, 2044, 2555, 3577, 3898, 5110, 7154, 7796, 9745, 10220, 13643, 14308, 17885, 19490, 27286, 35770, 38980, 54572, 68215, 71540, 95501, 136430, 142277, 191002, 272860, 284554, 382004, 477505, 569108, 711385, 955010, 995939, 1422770, 1910020, 1991878, 2845540, 3983756, 4979695, 6971573, 9959390, 13943146, 19918780, 27886292, 34857865, 69715730, 139431460]

約数ペア:

[(1, 139431460), (2, 69715730), (4, 34857865), (5, 27886292), (7, 19918780), (10, 13943146), (14, 9959390), (20, 6971573), (28, 4979695), (35, 3983756), (49, 2845540), (70, 1991878), (73, 1910020), (98, 1422770), (140, 995939), (146, 955010), (196, 711385), (245, 569108), (292, 477505), (365, 382004), (490, 284554), (511, 272860), (730, 191002), (980, 142277), (1022, 136430), (1460, 95501), (1949, 71540), (2044, 68215), (2555, 54572), (3577, 38980), (3898, 35770), (5110, 27286), (7154, 19490), (7796, 17885), (9745, 14308), (10220, 13643)]