20738045

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 27993600

約数和(自身を除く): 7255555

約数列:

[1, 5, 17, 29, 47, 85, 145, 179, 235, 493, 799, 895, 1363, 2465, 3043, 3995, 5191, 6815, 8413, 15215, 23171, 25955, 42065, 88247, 115855, 143021, 243977, 441235, 715105, 1219885, 4147609, 20738045]

約数ペア:

[(1, 20738045), (5, 4147609), (17, 1219885), (29, 715105), (47, 441235), (85, 243977), (145, 143021), (179, 115855), (235, 88247), (493, 42065), (799, 25955), (895, 23171), (1363, 15215), (2465, 8413), (3043, 6815), (3995, 5191)]