20786350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{283}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 42153552

約数和(自身を除く): 21367202

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 113, 130, 226, 283, 325, 565, 566, 650, 1130, 1415, 1469, 2825, 2830, 2938, 3679, 5650, 7075, 7345, 7358, 14150, 14690, 18395, 31979, 36725, 36790, 63958, 73450, 91975, 159895, 183950, 319790, 415727, 799475, 831454, 1598950, 2078635, 4157270, 10393175, 20786350]

約数ペア:

[(1, 20786350), (2, 10393175), (5, 4157270), (10, 2078635), (13, 1598950), (25, 831454), (26, 799475), (50, 415727), (65, 319790), (113, 183950), (130, 159895), (226, 91975), (283, 73450), (325, 63958), (565, 36790), (566, 36725), (650, 31979), (1130, 18395), (1415, 14690), (1469, 14150), (2825, 7358), (2830, 7345), (2938, 7075), (3679, 5650)]