20505514757

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{3461}}^1$

素因数の和:3690

約数の個数: 48

約数和(自身を含む): 26256472704

約数和(自身を除く): 5750957947

約数列:

[1, 7, 13, 49, 71, 91, 131, 497, 637, 917, 923, 1703, 3461, 3479, 6419, 6461, 9301, 11921, 24227, 44993, 45227, 65107, 83447, 120913, 169589, 245731, 314951, 453391, 455749, 846391, 1720117, 2204657, 3173737, 3194503, 5894083, 5924737, 12040819, 22216159, 22361521, 32190761, 41258581, 156530647, 225335327, 288810067, 418479893, 1577347289, 2929359251, 20505514757]

約数ペア:

[(1, 20505514757), (7, 2929359251), (13, 1577347289), (49, 418479893), (71, 288810067), (91, 225335327), (131, 156530647), (497, 41258581), (637, 32190761), (917, 22361521), (923, 22216159), (1703, 12040819), (3461, 5924737), (3479, 5894083), (6419, 3194503), (6461, 3173737), (9301, 2204657), (11921, 1720117), (24227, 846391), (44993, 455749), (45227, 453391), (65107, 314951), (83447, 245731), (120913, 169589)]