277720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:195

約数の個数: 32

約数和(自身を含む): 641520

約数和(自身を除く): 363800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 131, 212, 262, 265, 424, 524, 530, 655, 1048, 1060, 1310, 2120, 2620, 5240, 6943, 13886, 27772, 34715, 55544, 69430, 138860, 277720]

約数ペア:

[(1, 277720), (2, 138860), (4, 69430), (5, 55544), (8, 34715), (10, 27772), (20, 13886), (40, 6943), (53, 5240), (106, 2620), (131, 2120), (212, 1310), (262, 1060), (265, 1048), (424, 655), (524, 530)]