20104687575

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{117109}}^1$

素因数の和:117241

約数の個数: 72

約数和(自身を含む): 41531890400

約数和(自身を除く): 21427202825

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 109, 175, 225, 315, 327, 525, 545, 763, 981, 1575, 1635, 2289, 2725, 3815, 4905, 6867, 8175, 11445, 19075, 24525, 34335, 57225, 117109, 171675, 351327, 585545, 819763, 1053981, 1756635, 2459289, 2927725, 4098815, 5269905, 7377867, 8783175, 12296445, 12764881, 20494075, 26349525, 36889335, 38294643, 61482225, 63824405, 89354167, 114883929, 184446675, 191473215, 268062501, 319122025, 446770835, 574419645, 804187503, 957366075, 1340312505, 2233854175, 2872098225, 4020937515, 6701562525, 20104687575]

約数ペア:

[(1, 20104687575), (3, 6701562525), (5, 4020937515), (7, 2872098225), (9, 2233854175), (15, 1340312505), (21, 957366075), (25, 804187503), (35, 574419645), (45, 446770835), (63, 319122025), (75, 268062501), (105, 191473215), (109, 184446675), (175, 114883929), (225, 89354167), (315, 63824405), (327, 61482225), (525, 38294643), (545, 36889335), (763, 26349525), (981, 20494075), (1575, 12764881), (1635, 12296445), (2289, 8783175), (2725, 7377867), (3815, 5269905), (4905, 4098815), (6867, 2927725), (8175, 2459289), (11445, 1756635), (19075, 1053981), (24525, 819763), (34335, 585545), (57225, 351327), (117109, 171675)]