8571280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5639}}^1$

素因数の和:5671

約数の個数: 40

約数和(自身を含む): 20980800

約数和(自身を除く): 12409520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 5639, 11278, 22556, 28195, 45112, 56390, 90224, 107141, 112780, 214282, 225560, 428564, 451120, 535705, 857128, 1071410, 1714256, 2142820, 4285640, 8571280]

約数ペア:

[(1, 8571280), (2, 4285640), (4, 2142820), (5, 1714256), (8, 1071410), (10, 857128), (16, 535705), (19, 451120), (20, 428564), (38, 225560), (40, 214282), (76, 112780), (80, 107141), (95, 90224), (152, 56390), (190, 45112), (304, 28195), (380, 22556), (760, 11278), (1520, 5639)]