278877980

素因数分解:

$2^2\times 5^1\times {\mathrm{433}}^1\times {\mathrm{32203}}^1$

素因数の和:32645

約数の個数: 24

約数和(自身を含む): 587014512

約数和(自身を除く): 308136532

約数列:

[1, 2, 4, 5, 10, 20, 433, 866, 1732, 2165, 4330, 8660, 32203, 64406, 128812, 161015, 322030, 644060, 13943899, 27887798, 55775596, 69719495, 139438990, 278877980]

約数ペア:

[(1, 278877980), (2, 139438990), (4, 69719495), (5, 55775596), (10, 27887798), (20, 13943899), (433, 644060), (866, 322030), (1732, 161015), (2165, 128812), (4330, 64406), (8660, 32203)]