1640291312

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{127669}}^1$

素因数の和:127761

約数の個数: 40

約数和(自身を含む): 3514499760

約数和(自身を除く): 1874208448

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 73, 88, 146, 176, 292, 584, 803, 1168, 1606, 3212, 6424, 12848, 127669, 255338, 510676, 1021352, 1404359, 2042704, 2808718, 5617436, 9319837, 11234872, 18639674, 22469744, 37279348, 74558696, 102518207, 149117392, 205036414, 410072828, 820145656, 1640291312]

約数ペア:

[(1, 1640291312), (2, 820145656), (4, 410072828), (8, 205036414), (11, 149117392), (16, 102518207), (22, 74558696), (44, 37279348), (73, 22469744), (88, 18639674), (146, 11234872), (176, 9319837), (292, 5617436), (584, 2808718), (803, 2042704), (1168, 1404359), (1606, 1021352), (3212, 510676), (6424, 255338), (12848, 127669)]