51988125

素因数分解:

$3^1\times 5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1$

素因数の和:280

約数の個数: 80

約数和(自身を含む): 105266304

約数和(自身を除く): 53278179

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 51, 75, 85, 105, 119, 125, 175, 233, 255, 357, 375, 425, 525, 595, 625, 699, 875, 1165, 1275, 1631, 1785, 1875, 2125, 2625, 2975, 3495, 3961, 4375, 4893, 5825, 6375, 8155, 8925, 10625, 11883, 13125, 14875, 17475, 19805, 24465, 27727, 29125, 31875, 40775, 44625, 59415, 74375, 83181, 87375, 99025, 122325, 138635, 145625, 203875, 223125, 297075, 415905, 436875, 495125, 611625, 693175, 1019375, 1485375, 2079525, 2475625, 3058125, 3465875, 7426875, 10397625, 17329375, 51988125]

約数ペア:

[(1, 51988125), (3, 17329375), (5, 10397625), (7, 7426875), (15, 3465875), (17, 3058125), (21, 2475625), (25, 2079525), (35, 1485375), (51, 1019375), (75, 693175), (85, 611625), (105, 495125), (119, 436875), (125, 415905), (175, 297075), (233, 223125), (255, 203875), (357, 145625), (375, 138635), (425, 122325), (525, 99025), (595, 87375), (625, 83181), (699, 74375), (875, 59415), (1165, 44625), (1275, 40775), (1631, 31875), (1785, 29125), (1875, 27727), (2125, 24465), (2625, 19805), (2975, 17475), (3495, 14875), (3961, 13125), (4375, 11883), (4893, 10625), (5825, 8925), (6375, 8155)]