218777325

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{491}}^1$

素因数の和:974

約数の個数: 48

約数和(自身を含む): 391183296

約数和(自身を除く): 172405971

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 457, 491, 975, 1371, 1473, 2285, 2455, 5941, 6383, 6855, 7365, 11425, 12275, 17823, 19149, 29705, 31915, 34275, 36825, 89115, 95745, 148525, 159575, 224387, 445575, 478725, 673161, 1121935, 2917031, 3365805, 5609675, 8751093, 14585155, 16829025, 43755465, 72925775, 218777325]

約数ペア:

[(1, 218777325), (3, 72925775), (5, 43755465), (13, 16829025), (15, 14585155), (25, 8751093), (39, 5609675), (65, 3365805), (75, 2917031), (195, 1121935), (325, 673161), (457, 478725), (491, 445575), (975, 224387), (1371, 159575), (1473, 148525), (2285, 95745), (2455, 89115), (5941, 36825), (6383, 34275), (6855, 31915), (7365, 29705), (11425, 19149), (12275, 17823)]