20492099875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{3779}}^1$

素因数の和:3925

約数の個数: 64

約数和(自身を含む): 28531077120

約数和(自身を除く): 8038977245

約数列:

[1, 5, 13, 25, 47, 65, 71, 125, 235, 325, 355, 611, 923, 1175, 1625, 1775, 3055, 3337, 3779, 4615, 5875, 8875, 15275, 16685, 18895, 23075, 43381, 49127, 76375, 83425, 94475, 115375, 177613, 216905, 245635, 268309, 417125, 472375, 888065, 1084525, 1228175, 1341545, 2308969, 3488017, 4440325, 5422625, 6140875, 6707725, 11544845, 12610523, 17440085, 22201625, 33538625, 57724225, 63052615, 87200425, 163936799, 288621125, 315263075, 436002125, 819683995, 1576315375, 4098419975, 20492099875]

約数ペア:

[(1, 20492099875), (5, 4098419975), (13, 1576315375), (25, 819683995), (47, 436002125), (65, 315263075), (71, 288621125), (125, 163936799), (235, 87200425), (325, 63052615), (355, 57724225), (611, 33538625), (923, 22201625), (1175, 17440085), (1625, 12610523), (1775, 11544845), (3055, 6707725), (3337, 6140875), (3779, 5422625), (4615, 4440325), (5875, 3488017), (8875, 2308969), (15275, 1341545), (16685, 1228175), (18895, 1084525), (23075, 888065), (43381, 472375), (49127, 417125), (76375, 268309), (83425, 245635), (94475, 216905), (115375, 177613)]