780503440

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{184081}}^1$

素因数の和:184147

約数の個数: 40

約数和(自身を含む): 1848919608

約数和(自身を除く): 1068416168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 184081, 368162, 736324, 920405, 1472648, 1840810, 2945296, 3681620, 7363240, 9756293, 14726480, 19512586, 39025172, 48781465, 78050344, 97562930, 156100688, 195125860, 390251720, 780503440]

約数ペア:

[(1, 780503440), (2, 390251720), (4, 195125860), (5, 156100688), (8, 97562930), (10, 78050344), (16, 48781465), (20, 39025172), (40, 19512586), (53, 14726480), (80, 9756293), (106, 7363240), (212, 3681620), (265, 2945296), (424, 1840810), (530, 1472648), (848, 920405), (1060, 736324), (2120, 368162), (4240, 184081)]