1438780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 3548160

約数和(自身を除く): 2109380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 239, 301, 430, 478, 602, 860, 956, 1195, 1204, 1505, 1673, 2390, 3010, 3346, 4780, 6020, 6692, 8365, 10277, 16730, 20554, 33460, 41108, 51385, 71939, 102770, 143878, 205540, 287756, 359695, 719390, 1438780]

約数ペア:

[(1, 1438780), (2, 719390), (4, 359695), (5, 287756), (7, 205540), (10, 143878), (14, 102770), (20, 71939), (28, 51385), (35, 41108), (43, 33460), (70, 20554), (86, 16730), (140, 10277), (172, 8365), (215, 6692), (239, 6020), (301, 4780), (430, 3346), (478, 3010), (602, 2390), (860, 1673), (956, 1505), (1195, 1204)]