78744220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{74287}}^1$

素因数の和:74349

約数の個数: 24

約数和(自身を含む): 168485184

約数和(自身を除く): 89740964

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 74287, 148574, 297148, 371435, 742870, 1485740, 3937211, 7874422, 15748844, 19686055, 39372110, 78744220]

約数ペア:

[(1, 78744220), (2, 39372110), (4, 19686055), (5, 15748844), (10, 7874422), (20, 3937211), (53, 1485740), (106, 742870), (212, 371435), (265, 297148), (530, 148574), (1060, 74287)]