51513800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19813}}^1$

素因数の和:19842

約数の個数: 48

約数和(自身を含む): 128989140

約数和(自身を除く): 77475340

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 19813, 39626, 79252, 99065, 158504, 198130, 257569, 396260, 495325, 515138, 792520, 990650, 1030276, 1287845, 1981300, 2060552, 2575690, 3962600, 5151380, 6439225, 10302760, 12878450, 25756900, 51513800]

約数ペア:

[(1, 51513800), (2, 25756900), (4, 12878450), (5, 10302760), (8, 6439225), (10, 5151380), (13, 3962600), (20, 2575690), (25, 2060552), (26, 1981300), (40, 1287845), (50, 1030276), (52, 990650), (65, 792520), (100, 515138), (104, 495325), (130, 396260), (200, 257569), (260, 198130), (325, 158504), (520, 99065), (650, 79252), (1300, 39626), (2600, 19813)]