51427120

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15679}}^1$

素因数の和:15733

約数の個数: 40

約数和(自身を含む): 122492160

約数和(自身を除く): 71065040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 15679, 31358, 62716, 78395, 125432, 156790, 250864, 313580, 627160, 642839, 1254320, 1285678, 2571356, 3214195, 5142712, 6428390, 10285424, 12856780, 25713560, 51427120]

約数ペア:

[(1, 51427120), (2, 25713560), (4, 12856780), (5, 10285424), (8, 6428390), (10, 5142712), (16, 3214195), (20, 2571356), (40, 1285678), (41, 1254320), (80, 642839), (82, 627160), (164, 313580), (205, 250864), (328, 156790), (410, 125432), (656, 78395), (820, 62716), (1640, 31358), (3280, 15679)]