1405240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2$

素因数の和:116

約数の個数: 48

約数和(自身を含む): 3407400

約数和(自身を除く): 2002160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1634, 1720, 1849, 3268, 3698, 4085, 6536, 7396, 8170, 9245, 14792, 16340, 18490, 32680, 35131, 36980, 70262, 73960, 140524, 175655, 281048, 351310, 702620, 1405240]

約数ペア:

[(1, 1405240), (2, 702620), (4, 351310), (5, 281048), (8, 175655), (10, 140524), (19, 73960), (20, 70262), (38, 36980), (40, 35131), (43, 32680), (76, 18490), (86, 16340), (95, 14792), (152, 9245), (172, 8170), (190, 7396), (215, 6536), (344, 4085), (380, 3698), (430, 3268), (760, 1849), (817, 1720), (860, 1634)]