15402340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 34700400

約数和(自身を除く): 19298060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 509, 890, 1018, 1513, 1780, 2036, 2545, 3026, 5090, 6052, 7565, 8653, 10180, 15130, 17306, 30260, 34612, 43265, 45301, 86530, 90602, 173060, 181204, 226505, 453010, 770117, 906020, 1540234, 3080468, 3850585, 7701170, 15402340]

約数ペア:

[(1, 15402340), (2, 7701170), (4, 3850585), (5, 3080468), (10, 1540234), (17, 906020), (20, 770117), (34, 453010), (68, 226505), (85, 181204), (89, 173060), (170, 90602), (178, 86530), (340, 45301), (356, 43265), (445, 34612), (509, 30260), (890, 17306), (1018, 15130), (1513, 10180), (1780, 8653), (2036, 7565), (2545, 6052), (3026, 5090)]