281289075

素因数分解:

$3^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{619}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 477886080

約数和(自身を除く): 196597005

約数列:

[1, 3, 5, 15, 25, 73, 75, 83, 219, 249, 365, 415, 619, 1095, 1245, 1825, 1857, 2075, 3095, 5475, 6059, 6225, 9285, 15475, 18177, 30295, 45187, 46425, 51377, 90885, 135561, 151475, 154131, 225935, 256885, 454425, 677805, 770655, 1129675, 1284425, 3389025, 3750521, 3853275, 11251563, 18752605, 56257815, 93763025, 281289075]

約数ペア:

[(1, 281289075), (3, 93763025), (5, 56257815), (15, 18752605), (25, 11251563), (73, 3853275), (75, 3750521), (83, 3389025), (219, 1284425), (249, 1129675), (365, 770655), (415, 677805), (619, 454425), (1095, 256885), (1245, 225935), (1825, 154131), (1857, 151475), (2075, 135561), (3095, 90885), (5475, 51377), (6059, 46425), (6225, 45187), (9285, 30295), (15475, 18177)]