20121295490

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1\times {\mathrm{1481}}^1$

素因数の和:1883

約数の個数: 64

約数和(自身を含む): 37460786688

約数和(自身を除く): 17339491198

約数列:

[1, 2, 5, 10, 47, 94, 137, 211, 235, 274, 422, 470, 685, 1055, 1370, 1481, 2110, 2962, 6439, 7405, 9917, 12878, 14810, 19834, 28907, 32195, 49585, 57814, 64390, 69607, 99170, 139214, 144535, 202897, 289070, 312491, 348035, 405794, 624982, 696070, 1014485, 1358629, 1562455, 2028970, 2717258, 3124910, 6793145, 9536159, 13586290, 14687077, 19072318, 29374154, 42811267, 47680795, 73435385, 85622534, 95361590, 146870770, 214056335, 428112670, 2012129549, 4024259098, 10060647745, 20121295490]

約数ペア:

[(1, 20121295490), (2, 10060647745), (5, 4024259098), (10, 2012129549), (47, 428112670), (94, 214056335), (137, 146870770), (211, 95361590), (235, 85622534), (274, 73435385), (422, 47680795), (470, 42811267), (685, 29374154), (1055, 19072318), (1370, 14687077), (1481, 13586290), (2110, 9536159), (2962, 6793145), (6439, 3124910), (7405, 2717258), (9917, 2028970), (12878, 1562455), (14810, 1358629), (19834, 1014485), (28907, 696070), (32195, 624982), (49585, 405794), (57814, 348035), (64390, 312491), (69607, 289070), (99170, 202897), (139214, 144535)]