64393725

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{877}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 117581760

約数和(自身を除く): 53188035

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 89, 165, 267, 275, 445, 825, 877, 979, 1335, 2225, 2631, 2937, 4385, 4895, 6675, 9647, 13155, 14685, 21925, 24475, 28941, 48235, 65775, 73425, 78053, 144705, 234159, 241175, 390265, 723525, 858583, 1170795, 1951325, 2575749, 4292915, 5853975, 12878745, 21464575, 64393725]

約数ペア:

[(1, 64393725), (3, 21464575), (5, 12878745), (11, 5853975), (15, 4292915), (25, 2575749), (33, 1951325), (55, 1170795), (75, 858583), (89, 723525), (165, 390265), (267, 241175), (275, 234159), (445, 144705), (825, 78053), (877, 73425), (979, 65775), (1335, 48235), (2225, 28941), (2631, 24475), (2937, 21925), (4385, 14685), (4895, 13155), (6675, 9647)]