28379725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3329}}^1$

素因数の和:3381

約数の個数: 24

約数和(自身を含む): 39640320

約数和(自身を除く): 11260595

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1705, 3329, 8525, 16645, 36619, 83225, 103199, 183095, 515995, 915475, 1135189, 2579975, 5675945, 28379725]

約数ペア:

[(1, 28379725), (5, 5675945), (11, 2579975), (25, 1135189), (31, 915475), (55, 515995), (155, 183095), (275, 103199), (341, 83225), (775, 36619), (1705, 16645), (3329, 8525)]