15507380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{431}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 37449216

約数和(自身を除く): 21941836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 431, 514, 862, 1028, 1285, 1724, 1799, 2155, 2570, 3017, 3598, 4310, 5140, 6034, 7196, 8620, 8995, 12068, 15085, 17990, 30170, 35980, 60340, 110767, 221534, 443068, 553835, 775369, 1107670, 1550738, 2215340, 3101476, 3876845, 7753690, 15507380]

約数ペア:

[(1, 15507380), (2, 7753690), (4, 3876845), (5, 3101476), (7, 2215340), (10, 1550738), (14, 1107670), (20, 775369), (28, 553835), (35, 443068), (70, 221534), (140, 110767), (257, 60340), (431, 35980), (514, 30170), (862, 17990), (1028, 15085), (1285, 12068), (1724, 8995), (1799, 8620), (2155, 7196), (2570, 6034), (3017, 5140), (3598, 4310)]